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54 results about "Cation radical" patented technology
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Radical cation: An ion that has both a positive formal charge (a cation ) and an unpaired electron (a radical ). Most commonly encountered as a product of electron impact ionization in a mass spectrometer.
Amphoteric water soluble color-fixing agent and its application
The present invention relates to one kind of amphoteric water soluble polymer color-fixing agent and its synthesis and use. The amphoteric water soluble color-fixing agent is suitable for color fixing of direct active dye, and can form cation radical, reactant anion radical, hydrogen bond and some radical capable of increasing the intermolecular force in water solution. It can combine with dye anion and cellulose anion through electrostatic force like cationic color fixing agent, and has active cross-linking radical, structure unit with affinity to dye and molecular weight great enough to form protecting film combining with dye and fiber to close the hydrophilic radical, lower the water solubility of dye molecule and strengthen the force between dye molecule and cellulose molecule simultaneously, so as to raise color fastness in several aspects.
Owner:DONGHUA UNIV
Cation free radical type covalent organic frame material as well as preparation method and application thereof
The invention provides a preparation method for a cation free radical type covalent organic frame material. The preparation method is characterized by comprising the following steps: step 1, under a solvent heat condition, performing Schiff base reaction on multi-aminogroup monomers and multi-aldehyde group monomers so as to synthesize a covalent organic frame material with favorable crystallinityand orderly porous structure by use of a reversible rupture-restoration process of imine bonds; step 2, ionizing the covalent organic frame material by virtue of the quaternary ammonium salinizationreaction of heterocyclic nitrogen, thereby obtaining the ionized covalent organic frame material; and step 3, performing oxidation-reduction reaction on the ionized covalent organic frame material byuse of a strong reducer, thereby converting the ionized covalent organic frame material into a cation free radical type covalent organic frame material. The invention provides a cation free radical type covalent organic frame material obtained by the preparation method. The invention provides an application of the cation free radical type covalent organic frame material in near-infrared optical response optothermal conversion.
Owner:FUDAN UNIV
Compound containing cation radical of piperazidine, synthetic method, and application
This invention relates to a method for synthesizing a compound containing piperazine cation group and its application. The structural formula of the compound is shown, wherein, R1, R2, R3 and R4 are C1-C8 alkyl, and X- is Br-, Cl-, BF4- or PH6-. The compound has excellent properties of ionic liquid, and can dissolve a variety of poorly soluble compounds. The method has such advantages as low cost, simple synthesis, and high yield, and is suitable for mass production. The compound as ionic liquid can be used as gas absorbent and liquid extraction phase in separation engineering, reaction medium and catalyst in chemical reactions, electrolyte (including ion-conducting polyelectrolyte) in electrochemistry, cellulose solvent, multifunctional lubricant, matrix for mass spectrometry, and chromatographic stationary phase.
Owner:WUHAN UNIV
Bi-sulfonate interface initiator and preparing method thereof
ActiveCN105884987AComposition is easy to controlOptimal Control StructureSulfonic acids salts preparationPotassium peroxodisulfateGreen chemistry
The invention relates to a bi-sulfonate interface initiator and a preparing method thereof. A tertiary amine compound with bi-sulfonate anions and bi-dodecyl is synthesized, and the emulsion function higher than that of a common surfactant is shown; meanwhile, tertiary amine and potassium peroxodisulfate can be subjected to a redox reaction at the normal temperature, cation free radicals are formed on nitrogen atoms and then converted into carbon free radicals at adjacent positions, generating of the free radicals can be repeated, control is flexible, multi-phase concatenation polymerization is achieved, polymerization of styrene and methyl methacrylate and polymerization of styrene and hydroxyethyl acrylate are sequentially triggered on a water / oil interface, and a multi-segmented copolymer is obtained. An experiment proves that the feeding ratio of monomer and the composition ratio of the copolymer are quite coincident, it shows that the triggering efficiency of the initiator is high, the polymerization reaction in the mode is moderate and controllable in condition and low in energy consumption, other organic solvents and emulsifiers are avoided, the product is pure, and the requirements of green chemistry are completely met.
Owner:NINGBO UNIV
Calabash [7] carbamide aniline nano-supermolecule conducting polymer, method for preparing same and use
InactiveCN101307142AEasy to manufactureAvoid strict restrictionsConductive polymerOxidation-Reduction Agent
The invention relates to a novel nano supermolecular conductive polymer, a method for preparing the same and an application of the same. The novel nano supermolecular conductive polymer is obtained by polymerization of cucurbit (7) urea and aniline in water solution. The synthetic process of the novel nano supermolecular conductive polymer is completely performed in water phase, and the whole process is easy and feasible. As shown by the results of AFM and TEM experiments, the cucurbit (7) urea and aniline nano supermolecular conductive polymer takes the form of one dimensional nanometer linear aggregate. Moreover, compared with polyaniline synthesized by the prior art, the electrochemic property of the nano supermolecular conductive polymer is obviously different. Due to the stabilization of the cucurbit urea on cationic free radicals, the cucurbit (7) urea and aniline nano supermolecular conductive polymer can perform reversible redox process within wide pH value range. The nano supermolecular conductive polymer has wide application prospect in the nano supermolecular material technical field.
![Calabash [7] carbamide aniline nano-supermolecule conducting polymer, method for preparing same and use](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/0bc37ada-ba6a-4a79-ac23-92e9813692e5/a20071015043500111.PNG "Calabash [7] carbamide aniline nano-supermolecule conducting polymer, method for preparing same and use")
![Calabash [7] carbamide aniline nano-supermolecule conducting polymer, method for preparing same and use](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/0bc37ada-ba6a-4a79-ac23-92e9813692e5/a20071015043500112.PNG "Calabash [7] carbamide aniline nano-supermolecule conducting polymer, method for preparing same and use")
![Calabash [7] carbamide aniline nano-supermolecule conducting polymer, method for preparing same and use](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/0bc37ada-ba6a-4a79-ac23-92e9813692e5/a20071015043500121.PNG "Calabash [7] carbamide aniline nano-supermolecule conducting polymer, method for preparing same and use")
Owner:NANKAI UNIV
Gemini cationic surface active initiator and preparation method thereof
InactiveCN105820273AComposition is easy to controlOptimal Control StructureSulfonic acids salts preparationPotassium persulfatePotassium
The invention relates to a gemini cationic surface active initiator and a preparation method thereof. The method is characterized in that an amphiphilic compound containing disulfonic acid and bis-isooctane is synthesized, so that the compound has strong characteristic of an emulsification oiliness monomer, simultaneously, hydrophilic tertiary amine and potassium persulphate are subjected to an oxidation reduction reaction at normal temperature, cation free radical is formed on the nitrogen atoms, then conversed to the carbon free radicals with adjacent position, the generation of the free radical enables multi-time repetition with flexible control, a continuously initiated polyphase series-connection polymerization mode is realized, polymerization of styrene and vinyl acetate as well as styrene and acrylamide can be initiated on a water / oil interface in order, a segmented copolymer is obtained, the experiment proves that monomer feeding ratio and copolymer components ratio are consistent, initiation efficiency of the initiator is high, the polymerization condition in this mode is mild and controllable, energy consumption is low, other organic solvents and emulsifiers are not required, and products are pure and completely accord with green chemistry requirement.
Owner:NINGBO UNIV
Retention Improving Composition
InactiveUS20080004405A1Papermaking processNatural cellulose pulp/paperSpecial paperPapermakingWater soluble
A novel retention aid is provided, which can realizes not only high retention but also excellent paper formation and is easy to use, in various papermaking processes. A composition for improving retention is provided, which comprises (A) a cationic water-soluble polymer and (B) an amphoteric water-soluble polymer. The component (A) preferably is a copolymer having a cation equivalent of 0.05 to 4.00 meq / g or one having a 0.5% salted viscosity of 30 to 200 mPa·s. The component (B) preferably is either a copolymer comprising a cationic radical-polymerizable monomer unit, an anionic radical-polymerizable monomer unit, and a nonionic radical-polymerizable monomer unit, or an amphoteric water-soluble polymer obtained by polymerizing a cationic radical-polymerizable monomer with an anionic radical-polymerizable monomer in the presence of a polysaccharide. From the standpoint of attaining excellent formation, the component (B) preferably has a molar proportion of the cationic radical-polymerizable monomer unit to the anionic radical-polymerizable monomer unit (hereinafter referred to as Ca / An) satisfying Ca / An<1.2.
Owner:TOAGOSEI CO LTD
Cationic free radical hybrid ultraviolet-curing resin and preparation method and application thereof
InactiveCN106751349AFast photocuring reaction rateHigh mechanical strengthAdditive manufacturing apparatusPhotomechanical apparatusPolymer scienceUltraviolet
The invention discloses cationic free radical hybrid ultraviolet-curing resin and a preparation method thereof in order to solve the problems of slow ultraviolet-curing speed and low strength of a current ultraviolet-curing material, and the requirements on working efficiency and workpiece strength during production manufacturing can be met. The cationic free radical hybrid ultraviolet-curing resin disclosed by the invention is simple in preparation, is cheap in cost, is easy to obtain, has the advantages of fast curing speed, low shrinkage rate, high strength and high forming efficiency and is capable of increasing the product consistency while reducing the product cost.
Owner:ZHONGSHAN GREATSIMPLE TECH CO LTD
Cationic surface active initiator and preparation method thereof
ActiveCN105820274AComposition is easy to controlOptimal Control StructureOrganic chemistryPotassium persulfatePotassium
The invention relates to a cationic surface active initiator and a preparation method thereof. The method is characterized in that a tertiary amine compound containing bis-imidazole cation and didodecyl is synthesized, so that stronger emulsification function is presented by comparing with a common surfactant, simultaneously, tertiary amine and potassium persulphate are subjected to an oxidation reduction reaction at normal temperature, cation free radical is formed on the nitrogen atoms, then conversed to the carbon free radicals with adjacent position, the generation of the free radical enables multi-time repetition, polyphase series-connection polymerization is realized, polymerization of styrene and methyl acrylate as well as styrene and hydroxyethyl acrylate can be initiated on a water / oil interface in order, a segmented copolymer is obtained, the experiment proves that monomer feeding ratio and copolymer components ratio are consistent, initiation efficiency of the initiator is high, the polymerization condition in this mode is mild and controllable, energy consumption is low, other organic solvents and emulsifiers are not required, and products are pure and completely accord with green chemistry requirement.
Owner:宁波猎知乐科技咨询有限公司
Gemini type cationic surface active initiator and preparation method thereof
ActiveCN105820275AComposition is easy to controlOptimal Control StructureOrganic chemistryCarvacryl acetateGreen chemistry
The invention relates to a gemini type cationic surface active initiator and a preparation method thereof. According to the invention, a gemini amphiphilic compound containing bis-imidazole cation and diisooctane groups is synthesized; the compound has the characteristics of better emulsification of oily monomer compared with common cationic surfactants, and a hydrophilic part, i.e., tertiary amine, of the compound may undergoe a redox reaction with potassium persulfate at room temperature; cationic radicals are formed on nitrogen atoms at first and then converted into carbon radicals at adjacent positions; production of the free radicals can be repeated a plurality of times and flexibly controlled; a serially-initiated multiphase tandem polymerization mode is realized; and polymerization of styrene and vinyl acetate and polymerization of styrene and N-vinyl pyrrolidone are sequentially initiated on a water-oil interface so as to obtain a multi-block copolymer. Experiment results show that the feed ratio of monomer is consistent with the composition ratio of the copolymer, which indicates that the initiator has high initiation efficiency; and a polymerization reaction of such a pattern has mild and controllable reaction conditions and low energy consumption, does not use other organic solvents and emulsifiers, enables a product to be pure, and completely meets the requirements of green chemistry.
Owner:浙江九合环保科技有限公司
Gemini surface activity initiator and preparation method thereof
ActiveCN105884939AComposition is easy to controlOptimal Control StructureOrganic compound preparationAmino-hyroxy compound preparationPotassium persulfateCarvacryl acetate
The invention relates to a gemini surface activity initiator and a preparation method thereof. An amphiphilic compound containing polyhydroxyl amine and dioctyl groups is firstly synthesized, the compound has the high characteristics of emulsifying oily monomers, hydrophilic tertiary amine can generate a redox reaction with potassium persulfate at room temperature, cation free radicals are firstly formed on nitrogen atoms and then converted into carbon free radicals at the adjacent positions, generation of the free radicals can be repeated for multiple times and flexibly controlled, a serially-initiated multiphase concatenating polymerization mode is achieved, polymerization of styrene and vinyl acetate and polymerization of styrene and acrylamide are initiated on a water-oil interface in sequence, and then a segmented copolymer is obtained. Experiments prove that the feed ratio of monomers is quite consistent with the component ratio of the copolymer, that is to say, the initiation efficiency of the initiator is very high, this mode of polymerization reaction is mild and controllable in condition and low in energy consumption, no other organic solvent or emulsifier is used, the product is pure, and the requirements of green chemistry are totally met.
Owner:NINGBO UNIV
Dianion interface initiator and preparation method thereof
ActiveCN105884640AComposition is easy to controlOptimal Control StructureOrganic compound preparationAmino-carboxyl compound preparationPotassium persulfateGreen chemistry
The invention relates to a dianion interface initiator and a preparation method thereof. A tertiary amine compound containing dicarboxylic acid radical anions and diphenyl groups is firstly synthesized to enable the tertiary amine compound to show the characteristics of a surfactant, tertiary amine can generate a redox reaction with potassium persulfate at room temperature, cation free radicals are firstly formed on nitrogen atoms and then converted into carbon free radicals at the adjacent positions, generation of the free radicals can be repeated for multiple times and flexibly controlled, multiphase concatenating polymerization is achieved, polymerization of styrene and butyl acrylate and polymerization of styrene and dimethyl acrylamide are initiated on a water-oil interface in sequence, and then a segmented copolymer is obtained. Experiments prove that the feed ratio of monomers is quite consistent with the component ratio of the copolymer, that is to say, the initiation efficiency of the initiator is very high, this mode of polymerization reaction is mild and controllable in condition and low in energy consumption, no other organic solvent or emulsifier is used, the product is pure, and the requirements of green chemistry are totally met.
Owner:NINGBO UNIV
Method for preparing tetrathiafulvalene molecule-based micrometre and/or nano functional material
The invention belongs to the field of materials, and relates to a method for synthesizing tetrathiafulvalene molecule-based micron and / or nano functional materials by a supermolecule self-assembly method. The method comprises the following steps: dissolving tetrathiafulvalene derivatives and inorganic metallic salts into solvents which have different specific gravities and can be mutually dissolved respectively, and making the solvent in which the tetrathiafulvalene derivatives are dissolved and the solvent in which the inorganic metallic salts are dissolved, which have different specific gravities, interpenetrate mutually and be mixed; or mixing the tetrathiafulvalene derivatives and the inorganic metallic salts, dissolving the mixture of the tetrathiafulvalene derivatives and the inorganic metallic salts into the same solvent, and volatilizing the solvent to obtain micron and / or nano functional materials of the tetrathiafulvalene derivatives and coordination polymers of metallic ions, composite micron and / or nano functional materials of cation free radicals of the tetrathiafulvalene derivatives and elementary metals, the micron and / or nano functional materials of the cation free radicals of the tetrathiafulvalene derivatives, or the micron and / or nano functional materials of the elementary metals. The materials have the advantages of novel structure, uniform form, convenient preparation and novel electrical and magnetic properties.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Anionic surface active initiator and preparation method thereof
InactiveCN105884937AComposition is easy to controlOptimal Control StructureSulfonic acids salts preparationPotassium persulfateGreen chemistry
The invention relates to an anionic surface active initiator and a preparation method thereof. The method comprises the steps that a tertiary amine compound containing sulfonate anion and dodecyl is synthesized, and the tertiary amine compound itself is surfactant; meanwhile, tertiary amine and potassium persulfate can be subjected to an oxidation-reduction reaction at room temperature, cationic free radicals are formed on nitrogen atoms and converted into carbon free radicals at adjacent positions, free radical generation can be repeated multiple times and controlled flexibly, multiphase concatenated polymerization of styrene and butyl acylate and styrene and acrylamide is initiated successively on a water or oil interface, and a segmented copolymer is obtained. It is provided through experiments that the feed ratio of a monomer and the component ratio of the copolymer are very consistent, it is illustrated that the initiation efficiency of the initiator is high, the polymerization reaction condition is mild and controllable, the energy consumption is low, other organic solvents and emulsifiers are not used, the product is pure, and the requirements of green chemistry are completely met.
Owner:牡丹江旭日新材料科技有限公司
Polyhydroxy polyamine surface activity initiator and preparing method thereof
ActiveCN105884624APerformance impactNo leakageOrganic compound preparationTransportation and packagingPotassium persulfateGreen chemistry
The invention discloses a polyhydroxy polyamine surface activity initiator and a preparing method thereof. A tri-tert amine compound containing polyhydroxy group and cetyl group is synthesized and is made to have the characteristics of a surfactant; meanwhile, redox reaction can be conducted between tertiary amine and potassium persulfate at normal temperature, cation free radicals are formed on nitrogen atoms firstly and then converted into carbon free radicals at adjacent positions, free radicals can be generated repeatedly under flexible control, multiphase tandem connection polymerization can be achieved, polymerization between styrene and methyl acrylate and polymerization between styrene and acrylamide are triggerned on a water / oil interface in sequence, and a corresponding segmented copolymer is obtained; experiments prove that the rate of charge of a monomer is quite consistent with the component ratio of the copolymer, which implies that the ignition efficiency of the initiator is high. The polymerization reaction condition of the mode is mild and controllable, energy consumption is low, no other organic solvent or emulgator is used, the product is pure, and the requirement of green chemistry is completely met.
Owner:NINGBO UNIV
Application of triarylimidazole compound serving as catalyst in electroorganic synthesis
InactiveCN102600892AEasy to prepareEasy to separateElectrolysis componentsOrganic-compounds/hydrides/coordination-complexes catalystsArylCycloaddition
The invention relates to an application of a triarylimidazole compound shown in a formula (I) and serving as a catalyst in electroorganic synthesis. In the formula (I), Ar1, Ar2 and Ar3 represent aryl or substituted aryl, and Ar1, Ar2 and Ar3 are same or different; R represents -H, C1-10 alkyl, benzyl, aryl or cyano. The cation free radical which is formed by the triarylimidazole compound shown in the formula (I) under the electrochemical oxidation condition has stable electrochemical stability, and the triarylimidazole compound can be used as the catalyst in electroorganic synthesis. The catalyst can be used for catalyzing a carbonyl compound represented by an electrochemical oxidation preparation formula (II) of benzyl alcohol or alkylbenzene and can be used for inducing a cyclohexene compound represented by a cation free radical type [4+2] cycloaddition reaction preparation formula (III). Compared with the existing triarylimidazole compound, the catalyst disclosed by the invention is more easily prepared and separated, is high in yield and corresponds to a triphenylamine catalyst in the aspects of catalysis and hole transportation capabilities.
Owner:BEIJING UNIV OF TECH
Bi-benzene-sulfonate interface initiator and preparing method thereof
ActiveCN105884940AComposition is easy to controlOptimal Control StructureSulfonic acids salts preparationPotassium peroxodisulfateGreen chemistry
The invention relates to a bi-benzene-sulfonate interface initiator and a preparing method thereof. A tertiary amine compound with bi-benzene-sulfonate anions and bi-dodecyl is synthesized, and the characteristics of a surfactant are shown; meanwhile, tertiary amine and potassium peroxodisulfate can be subjected to a redox reaction at the normal temperature, cation free radicals are formed on nitrogen atoms and then converted into carbon free radicals at adjacent positions, generating of the free radicals can be repeated, control is flexible, multi-phase concatenation polymerization is achieved, polymerization of styrene and butyl acrylate and polymerization of styrene and N,N-dimethyl acrylamide are sequentially triggered on a water / oil interface, and a multi-segmented copolymer is obtained. An experiment proves that the feeding ratio of monomer and the composition ratio of the copolymer are quite coincident, it shows that the triggering efficiency of the initiator is high, the polymerization reaction in the mode is moderate and controllable in condition and low in energy consumption, other organic solvents and emulsifiers are avoided, the product is pure, and the requirements of green chemistry are completely met.
Owner:NINGBO UNIV
Diphosphonate interface initiator and preparation method thereof
ActiveCN105884938AComposition is easy to controlOptimal Control StructureGroup 5/15 element organic compoundsPotassium persulfateGreen chemistry
The invention relates to a diphosphonate interface initiator and a preparation method thereof. A tertiary amine compound containing diphosphonic acid radical anions and didodecyl groups is firstly synthesized to enable the tertiary amine compound to show the emulsifying function which is higher than that of a common surfactant, tertiary amine can generate a redox reaction with potassium persulfate at room temperature, cation free radicals are firstly formed on nitrogen atoms and then converted into carbon free radicals at the adjacent positions, generation of the free radicals can be repeated for multiple times and flexibly controlled, multiphase concatenating polymerization is achieved, polymerization of styrene and methyl methacrylate and polymerization of styrene and hydroxyethyl acrylate are initiated on a water-oil interface in sequence, and then a segmented copolymer is obtained. Experiments prove that the feed ratio of monomers is quite consistent with the component ratio of the copolymer, that is to say, the initiation efficiency of the initiator is very high, this mode of polymerization reaction is mild and controllable in condition and low in energy consumption, no other organic solvent or emulsifier is used, the product is pure, and the requirements of green chemistry are totally met.
Owner:NINGBO UNIV
Preparation method for water-soluble fluorescent nuclear shell nanometer particles
InactiveCN102600774AExcellent fluorescence performanceGood water solubilityMicroballoon preparationMicrocapsule preparationBiological imagingIon
The invention relates to a water-soluble noble metal / organic fluorescent micro-molecular nuclear shell nanometer material, in particular to a preparation method for a nanometer material with noble metal enhanced organic fluorescent illuminating and raman signal. According to the technical scheme of the invention, the preparation method comprises the following steps of: preparing noble metal nanometer silver (Ag) particles; preparing a cation free radical solution of organic molecules according to a AgClO4 or I2 oxidation method or FeCl3 oxidation method; dropwise adding the cation free radical solution of organic molecules into a suspension of noble metal nanometer particles, and performing replacement reaction on the cation and the noble metal nanometer Ag particles, thereby obtaining noble metal / organic functional micro-molecular nuclear shell structural nanometer particles; and coating a layer of PANI (polyaniline) on the surfaces of the nuclear shell structural nanometer particles, thereby causing the material to possess strong fluorescent performance in water. The preparation method provided by the invention is simple, is easily performed and is utilized to prepare the water-soluble nuclear shell structural nanometer particles with noble metal enhanced fluorescent and raman signal in large scale. According to the preparation method, an excellent material is applied to the aspect of biological imaging, and the like, and the preparation method has wider application prospect.
Owner:BEIJING UNIV OF CHEM TECH
Cationic-emulsion-particle-toughened hydrophobic association hydrogel and preparing method
The invention discloses a cationic-emulsion-particle-toughened hydrophobic association hydrogel. The cationic-emulsion-particle-toughened hydrophobic association hydrogel is prepared from cationic emulsion particles, a hydrophobic monomer, an emulsifying agent, main monomers and deionized water, wherein the weight ratio of the cationic emulsion particles to the hydrophobic monomer to the emulsifying agent to the main monomers and to the deionized water is (0.1-1.0):(0.5-1.0):3:40:100. The cationic emulsion particles are copolymerized from styrene and cationic monomers, an initiating agent is decomposed, cationic free radicals and cationic monomer chain sections are generated, and the good hydrophilia is distributed on the surfaces of microspheres; the deionized water, the main monomer, the emulsifying agent, the initiating agent, the hydrophobic monomer and the cationic emulsion particles are mixed to be even and injected into a mold and heated, and the hydrogel is obtained. The hydrophobic monomer are stabilized on the particle surfaces by a surfactant through the cationic emulsion particles to form a hydrophobic association center, anion free radicals are adsorbed through electric charges, and a hydrogel network is formed in a triggered-polymerized mode. The cationic emulsion particles have the hydrophobic association physical cross-linking and ionic cross-linking agent effects in the hydrogel, the hydrogel is reinforced, and the mechanical performance of the hydrogel is obviously improved. The breaking elongation rate is 1,780%, and the tensile strength is 1.37 MPa.
Owner:CHANGCHUN UNIV OF TECH
Liquid crystal compound containing morpholine cation group, synthesis and uses thereof
The invention relates to a compound containing morpholine cation radical, a method for synthesizing the same and application thereof. The structural formula of the compound is shown on the right, wherein R1 is methyl or ethyl group, R2 is alkyl group of C10 to C16; X is Cl<->, Br<->, BF4<-> and PF6<->, and Y is Cl<->, Br<->, BF4<->, PF6<->, CH3SO3<-> and CH3C6H4SO3<->. The compound is a thermotropic liquid crystal material which is crystal at room temperature, and can form anisotropic liquid crystal phase when heated. The compound has the advantages of simple synthesis route, high yield and low cost. The compound can be used as ionic liquid in fields: ionic conduction material at the molecular level; order reaction medium in a chemical reaction; and a template in the synthesis of nano material.
Owner:WUHAN UNIV
Water-soluble polymer dispersion liquid, paper strength agent, papermaking filter aid and papermaking retention agent
ActiveCN102206302AImprove water filtration performanceImprove retentionReinforcing agents additionRetention agents additionTurbidityWater soluble
The invention provides a water-soluble polymer dispersion liquid, a paper strength agent, a papermaking filter aid and a papermaking retention agent, which may not impair the paper quality and can maintain high filteration rate and enhance paper strength. The water-soluble polymer dispersion liquid, in a saline solution, of which the salt concentration is higher than 10 weight % and lower than a saturation concentration and at the presence of a polymeric dispersant (B), is a dispersion liquid obtained by dispersion polymerization of the free radical polymeric components (a) of at least cationic free radical polymeric monomers (a1), anionic free radical polymeric monomers (a2) and (methyl) acrylamide (a4). In a water diluted dispersion liquid where the total content of the component (A) and the component (B) of the dispersion liquid is 0.2 wt.%, the minimal turbidity of the diluted dispersion liquid ranges from 10NTU to 500NTU, when the pH value is 5-8.
Owner:ARAKAWA CHEM IND LTD
Compound containing morpholine cation radical and its synthesis process and use
InactiveCN1986534AThe synthetic route is simpleHigh yieldOrganic chemistryChemical reactionMorpholine
The present invention relates to compound containing morpholine cation radical and its synthesis and use. The compound of the present invention is one excellent green solvent with dissolving capacity higher than organic solvent, has low production cost, simple synthesis path and high yield, and is suitable for industrial production. The compound of the present invention is used as ionic liquid and may be used as gas absorbent and liquid extractant in separation engineering, as reaction medium and catalyst in chemical reaction, as electrolyte in electrochemical engineering, etc.
Owner:WUHAN UNIV
Water-soluble polymer dispersion liquid, paper strength agent, papermaking filter aid and papermaking retention agent
ActiveCN102153697AImprove retentionImprove water filtration performanceReinforcing agents additionPaper/cardboardMethyl groupMaterials science
The invention provides a water-soluble polymer dispersion liquid with excellent preservation stability, a paper strength agent stabling paper quality and enhancing paper strength, a papermaking filter aid and a papermaking retention agent. The dispersion liquid disperses a water-soluble polymer (A) into particles with average diameters of 0.1-100 micrometers in a saline solution of which the salt concentration is higher than 10 weight % and lower than a saturation concentration by using a polymeric dispersant (B), wherein the content of the water-soluble polymer (A) is 10-40 weight %, and the viscosity of the dispersion liquid is 3,000-20,000 mPa.s. The polymeric dispersant (B) contains 10-99.979 mol% of cationic free radical polymeric monomers (b1), 0.01-1mol% of monomers with (methyl) allyl (b2), 0.001-0.1 mol% of crosslinking monomers (b3) and 0.01-1 mol% of N-substituted (methyl) acrylamides (b4) represented by the formula CH2=C(R1)-CONR2(R2) (wherein, R1 represents hydrogen atoms or methyl; R2 independently represents straight or branched alkyl having 1-4 carbon atoms.
Owner:ARAKAWA CHEM IND LTD
Method for preparing arrayed organic nanoparticles
InactiveCN101704502AEasy to operateHigh crystallinityNanostructure manufactureNanoparticleCation radical
The invention relates to a method for preparing arrayed organic nanoparticles. The method comprises: adopting a AgClO4 and I2 oxidation method or a FeCl3 oxidation method to prepare cation radical solution of organic molecules; dipping arrayed metal electrode substrates in the solution; allowing cations to be subjected to replacement reaction with arrayed metal on the electrode substrates; and obtaining the arrayed organic nanoparticles. The method provided by the method is simple, practicable and capable of preparing the arrayed organic nanoparticles in large area.
Owner:INST OF CHEM CHINESE ACAD OF SCI
Compound of containing cation radical of L ¿C proline, preparation method, and application
This invention relates to a method for synthesizing compounds containing L-proline cations and their application. The structural formula of the compounds is shown in formula 1, wherein, R1 and R2 are C2-C8 alkyl; X- is Br-, Cl-, BF4-, or PF6-. The compounds are environmentally friendly ionic liquids with higher solvency than common organic solvents, and can be used as gas absorbents and liquid extraction phases in separation process, both reaction media and catalysts in chemical reaction, electrolytes in electrochemical process, solvents for cellulose, lubricants, matrices in mass spectrometry, or stationary phases in chromatography. The method has such advantages as simple process and high yield, and is suitable for industrialization.
Owner:WUHAN UNIV
Preparation method of antistatic non-woven fabric
InactiveCN108252097AReduce concentrationSlow reaction rateFibre typesConjugated cellulose/protein artificial filamentsPolypyrroleSulfosalicylic acid
The invention discloses a preparation method of an antistatic non-woven fabric, and belongs to the technical field of textile preparation. Polypyrrole is formed from pyrrole by initiating of cationicradical polymerization in a conductive mixed solution and an oxidation initiating solution, and reaction on the surface of a PET spunlace substrate and a mixed solution to improve the antistatic property of the nonwoven fabric; in the oxidation initiating solution, sulfosalicylic acid and ferric nitrate are mixed to form an aqueous solution of the sulfosalicylic acid and the ferric nitrate, and the sulfosalicylic acid is chelated with iron ions to promote stable redox reaction, so that the polypyrrole is uniformly deposited and distributed on the surface of a composite material of the PET spunlace substrate and PVA-co-PE nanofiber, after a modified non-woven fabric is immersed in the suspension of the PVA-co-PE nanofiber, the surface of the modified non-woven fabric is coated with a layerof the PVA-co-PE nanofiber, the specific surface area of the composite material is increased, the mass per unit area of the polypyrrole allowed to be the adsorbed and contained can be more, hole transferring efficiency is higher, the antistatic property of the nonwoven fabric is improved, and the application prospect is broad.
Owner:仇颖莹
Method for preparing tetrathiafulvalene molecule-based micrometre and/or nano functional material
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Stabilization processes of cation radicals of phenothiazinic compounds, cosmeceutical formulations and methods for skin diseases and disturbances prevention
The present invention relates to processes of stabilization of cation radicals from one or more phenothiazinic compounds or derivatived compounds thereof. Another embodiment of the present invention relates to cosmeceutical formulations comprising one or more phenothiazinic compounds or derivatived compounds thereof, in combination with cosmeceutically acceptable excipients. The invention also relates to uses of one or more phenothiazinic compounds or derivatived compounds thereof, i the preparation of cosmeceutical formulations for the prevention of skin diseases and disturbances. Methods for prevention of skin diseases and disturbances are also disclosed by the present invention. Particularly, the embodiments of the present invention employ the cited one or more phenothiazinic compounds o derivatived compounds thereof in the form of their stabilized cation radicals.
Owner:NANTES ISELI LOURENCO +2
Papermaking retention and drainage reinforcing agent
InactiveCN109082931AImprove retentionImprove water filtration performanceReinforcing agents additionPaper/cardboardPolymer scienceMethyl group
The invention provides a papermaking retention and drainage reinforcing agent. The papermaking retention and drainage reinforcing agent is dispersion liquid. Water-soluble polymers (A) are dispersed in brine solution by the aid of polymeric dispersants (B) to obtain the dispersion liquid, the salinity of the brine solution is higher than, by weight, 10% and is lower than the saturation concentration, the average particle size of the dispersion liquid is 0.1-100 micrometers, the dispersion liquid comprises, by weight, 10-40% of water-soluble polymers (A), the viscosity of the dispersion liquidat the temperature of 25 DEG C is 3000-20000 mPa s, the polymeric dispersants (B) are polymeric dispersants, the polymeric dispersants comprise polymerization components including, by molar mass, 10-99.979% of positive ion radical polymer monomers (b1), 0.01-1% of (methyl) allyl monomers (b2), 0.001-0.1% of cross-linking monomers (b3) and 0.01-1% of N-substituted (methyl) acrylamides (b4), the polymerization components are copolymerized to obtain the polymeric dispersants, the N-substituted (methyl) acrylamides (b4) are represented by a general formula CH2=C(R1)-CONR2(R2), the R1 in the formula represents hydrogen atoms or methyl, the R2 independently represents linear-chain or branched-chain alkyl, and the carbon atom number of the linear-chain or branched-chain alkyl is 1-4.
Owner:云梦嘉邦斯新型材料有限公司
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