593 results about "Allylamine" patented technology

The invention discloses graphene aerogel and a preparation method thereof. The method comprises the following steps: (1) uniformly mixing graphene oxide dispersion liquid with an amine water-soluble compound to obtain graphene oxide mixed liquid, wherein the amine water-soluble compound is selected from one or more of diethylamine, ethidene diamine, propane diamine, butane diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine, allylamine polymer and N,N'-bis(2-aminoethyl)-1,3-propane diamine; (2) irradiating the graphene oxide mixed liquid by high-energy rays under the anaerobic condition to obtain amino-modified graphene aerogel; (3) performing freeze-drying or supercritical CO2 drying to obtain the graphene aerogel. The graphene aerogel adopts a porous and macroporous structure, is relatively uniform in structure, and can be used for adsorbing an organic solvent; moreover, the preparation method is simple and environment-friendly.

The invention aims to provide a method for synthesizing novel perfluoropolyether alkoxysilane applied to anti-fingerprint paint through reaction of perfluoroalkyl ether acyl fluoride, allyl amine and trimethoxy silane. The method is characterized by comprising the following steps: (1) adding perfluoroalkyl ether acyl fluoride and allyl amine into a reaction vessel at the molar ratio of 1 to (1-1.1), adding a certain amount of solvent and alkali into the reaction vessel, and performing stirring overnight at a room temperature; performing filtration, performing distillation under reduced pressure to remove the solvent, and performing silica gel column separation, wherein an eluting agent is composed of heptane and ethyl acetate at the ratio of 6 to 1, and a product is obtained after the solvent is removed; (2) a certain amount of product obtained in the step (1) and a catalyst are added into a reaction kettle, sealing the reaction kettle, performing nitrogen protection, placing the reaction kettle in oil bath, heating the reaction kettle to specified temperature, and performing stirring for reaction for 48 hours; quickly cooling the reaction kettle to room temperature after the reaction is finished; performing distillation under reduced pressure on the product of the reaction to remove solvent, and then performing separation and purification through silica gel columns to obtain the product (namely the novel perfluoropolyether alkoxysilane). The product prepared by the invention is applied to anti-fingerprint paint, has the characteristics of fingerprint reduction, easiness in cleaning, wear resistance and the like, and is suitable for lots of base materials, such as glass, plastic, metal and films.

The present invention provides functionalized particles and methods for delivering said particles capable of crossing a physiologic barrier and exerting an effect. In one embodiment, the present invention provides a method of delivering a particle to a mammal comprising the steps of contacting a functionalized particle with a tag and introducing the functionalized and tagged particle to a mammal, wherein the functionalized portion of the particle is selected from the group consisting of acrylic acid, 2-hydroxyethyl acrylate, 2-acrylamido-2-methyl-1-propanesulfonic acid, allylamine, carboxyl group, hydroxyl group, sulfonic group, aldehyde and amine group. The particle is a biodegradable or nodegradable polymer and less than 1.0 mm in diameter.

The invention relates to a heavy metal ion adsorption film and a production method thereof. The heavy metal ion adsorption film is composed of polyvinyl alcohol and amido polymers at a polyvinyl alcohol / amido polymer ratio of (95:5) to (20:80). The amido polymers are polyvinyl amine, polyallylamine and branched polyethylene. The amido polymers are introduced into the aqueous solution of polyvinyl alcohol and then the resulting mixture undergoes crosslinking reaction with a cross-linking agent to form a three-dimensional polymer network. The method is simple, feasible and free of organic solvents. The introduction of amido groups can efficiently increase the water swellability of polyvinyl alcohol film and simultaneously enhance the adsorbability of the film to heavy metal ions.

A method comprising the steps of: (A) forming a fluid comprising a crosslinked polymer, wherein the crosslinked polymer comprises: (i) a first monomeric unit of one or more N-vinyl lactams; and (ii) a crosslinker selected from the group consisting of: divinyl ether, diallyl ether, vinyl or allyl ethers of polyglycols or polyols, divinylbenzene, 1,3-divinylimidazolidin-2-one, divinyltetrahydropyrimidin-2(1H)-one, dienes, allyl amines, N-vinyl-3(E)-ethylidene pyrrolidone, ethylidene bis(N-vinylpyrrolidone), and any combination of any of the foregoing; and (B) introducing the fluid into a portion of a well. The crosslinked polymer may additionally comprise: a second monomeric unit selected from the group consisting of: acrylamide, N-substituted acrylamides, methacrylamide, N-substituted methacrylamides, acrylates, methacrylates, acrylic acid, methacrylic acid, N-vinylamides, N-allyl amides, vinyl alcohol, vinyl ethers, vinyl esters, allyl alcohol, allyl ethers, allyl esters, vinylpyridine, vinyl sulfonates, allyl sulfonates, vinylimidazole, allylimidazole, diallyldimethylammonium chloride, and any combination of any of the foregoing.

Hydrophilic polymer particles have been obtained using polyacrylamide, xanthane, maleic anhydride polymers, allylamine, ethyleneimine, and oxazoline as core polymers. Then, hydrophobic polymers shells have been produced on the core-side using styrene, styrene copolymers, polyvinyl state, polysolfune, polymethyl methacrylate, and polycyclohxyl methacrylate by in-situ polymerization of monomer as method one and inverse emulsion process as method two. These particles can release hydrophilic polymers at oil-water interface at the reservoir temperature where the water flooding should have the maximum viscosity. So, active materials cause to decrease the mobility ratio of water to oil in the reservoirs and on the other hand, plug the swept porosities and prevent to act the water fingering process.

A medical device with a hydrophilic and lubricious coating, wherein the coating includes a hydrophilic polymeric unit layer deposited on the medical device and cross-linked with a plasma deposited double bond monomer. The hydrophilic polymeric unit can include ethylene oxide with one or more primary or secondary alcohol groups or glycosaminoglycans such as hyaluronic acid, and the double bond monomer includes monomers containing at least one double bond, preferably a C═C, C═N or C═O bond, including N-trimethylsilyl-allylamine, ethylene, propylene and allyl alcohol.

The invention discloses an anticoagulation high polymer biomaterial which comprises a substrate layer, an anticoagulation coating, and a plasma polymerization layer positioned between the substrate layer and the anticoagulation coating, wherein the substrate layer is made of a biomedical material; the plasma polymerization layer is an allylamine plasma polymerization membrane layer deposited on the substrate layer; the anticoagulation coating is an anticoagulant layer fixed on the plasma polymerization layer; and the anticoagulants comprise hirudin, heparin and the like. Anticoagulant molecules are fixedly grafted on the material surface by utilizing the pulsed plasma technology and surface heparin grafting method, and effective molecule orientation is remained by heparin molecules, so the anticoagulant performance is close to the performance of heparin molecules in the solution. Meanwhile, the heparin molecules are difficultly scoured off by blood, the persistence and stability of the anticoagulation effect are guaranteed, and the service life is long. The invention further discloses a preparation method and application of the anticoagulation high polymer biomaterial.

A solid sorbent for the capture and the transport of carbon dioxide gas is provided having at least one first layer of a positively charged material that is polyethylenimine or poly(allylamine hydrochloride), that captures at least a portion of the gas, and at least one second layer of a negatively charged material that is polystyrenesulfonate or poly(acryclic acid), that transports the gas, wherein the second layer of material is in juxtaposition to, attached to, or crosslinked with the first layer for forming at least one bilayer, and a solid substrate support having a porous surface, wherein one or more of the bilayers is / are deposited on the surface of and / or within the solid substrate. A method of preparing and using the solid sorbent is provided.

A therapeutic compound consisting of human telomerase, its catalytic subunit hTert, or a known variant of either, and a biodegradable nanoparticle carrier, which can be administered to cells in a cell culture or in a living animal, is provided herein. The therapeutic compound is envisioned as a method for treating a wide variety of age-related diseases such as idiopathic pulmonary fibrosis, aplastic anemia, dyskeratosis congenita, arteriosclerosis, macular degeneration, osteoporosis, Alzheimer's, diabetes type 2, and any disease that correlates with telomere shortening and may be corrected or ameliorated by lengthening telomeres. The therapeutic compound is also envisioned as method for potentially treating more generic problems of human aging. The nanoparticle carrier is comprised of certain biodegradable biocompatible polymers such as poly(lactide-co-glycolide), poly(lactic acid), poly(alkylene glycol), polybutylcyanoacrylate, poly(methylmethacrylate-co-methacrylic acid), poly-allylamine, polyanhydride, polyhydroxybutyric acid, polycaprolactone, lactide-caprolactone copolymers, polyhydroxybutyrate, polyalkylcyanoacrylates, polyanhydrides, polyorthoester or a combination thereof. The nanoparticle may incorporate a targeting moiety to direct the nanoparticle to a particular tissue type or a location within a cell. The nanoparticle may incorporate a plasticizer to facilitate sustained release of telomerase such as L-tartaric acid dimethyl ester, triethyl citrate, or glyceryl triacetate. A nanoparticle of the present invention can further contain a polymer that affects the charge or lipophilicity or hydrophilicity of the particle. Any biocompatible hydrophilic polymer can be used for this purpose, including but not limited to, poly(vinyl alcohol).

The invention discloses mesoporous ZSM-5 zeolite, a mesoporous ZSM-5 zeolite-loaded metal sulfide catalyst and an application. The synthesizing method of the mesoporous ZSM-5 zeolite comprises the following steps: (1) after uniformly mixing diallylamine and concentrated hydrochloric acid, adding dimethyl diallyl ammonium chloride, uniformly stirring and reacting for 1-6 hours at 60-120 DEG C, and cooling to obtain a template agent DMMC (Dimethylol Methyl Carbamate); (2) preparing acidified aluminum sulfate liquor by aluminum sulfate, concentrated sulfuric acid and water; (3) adding water into water glass, uniformly stirring, adding NaOH, adding the template agent DMMC after cooling to room temperature, continuously stirring for 2-5 hours, then adding the acidified aluminum sulfate liquor under stirring, and stirring for 2-8 hours to obtain a gel in a final state; (4) crystallizing the gel in the final state obtained in the step (3), filtering, drying and calcining to obtain the mesoporous ZSM-5 zeolite. The mesoporous ZSM-5 zeolite-loaded metal sulfide catalyst prepared by taking the mesoporous ZSM-5 zeolite as a carrier is applied to hydrodesulfurization of 4, 6-dimethyl dibenzothiophene and hydrocracking reaction of n-decane, thereby greatly improving the raw material conversion ratio.

The invention discloses a preparation method of a silane coupling agent with an imide cycle structural unit. The preparation method comprises the following steps: (1) dissolving cyclic anhydride into glacial acetic acid, adding allylamine according to the mole ratio (1:1 or 2:1) of cyclic anhydride to allylamine, refluxing for 2-36h while stirring, adding water, filtering and drying to obtain an imidization product; (2) dissolving the imidization product into benzene or methylbenzene, adding trialkoxysilane with the molar concentration of 0.01-0.05mol / l, reacting at the temperature of 50-90 DEG C for 2-10h, and removing fractions with low boiling points through reduced pressure distillation to obtain the silane coupling agent with the imide cycle structural unit, wherein the trialkoxysilane contains a platinum catalyst, and the mole ratio of trialkoxysilane to the imidization product is 1:1 or 2:1. According to the invention, the silane coupling agent with the imide cycle structural unit is synthesized by taking cyclic anhydride, allylamine and trialkoxysilane as reactants through a two-step method, and an expensive chemical drying agent is not needed to be added in the process, so that the cost is low; moreover, the preparation method is simple in synthesis process and high in yield, and the silane coupling agent with the imide cycle structural unit is easy to purify.

In order to overcome the phenomenon that the existing polycarboxylic acid water reducing agent is hypersensitive to slime contained in aggregate, the invention provides an assistant which can effectively inhibit the influence of the slime on the polycarboxylic acid water reducing agent and a preparation method thereof. The assistant for the polycarboxylic acid water reducing agent is a product obtained by the polymerization of an acrylamide monomer and an amine-alkene-containing monomer under the initiation effect of an initiator, wherein the amine-alkene-containing monomer specifically refers to one of dimethylallyl amine, diallyl amine, dimethylaminoethyl methacrylate or dimethylaminoethyl acrylate. The assistant provided by the invention can well inhibit the influence of the slime contained in aggregate on the polycarboxylic acid water reducing agent and keep a favorable working state. Besides, the preparation method provided by the invention has simple reaction conditions and is applicable to industrial production; and the obtained product contains no chloride ion.

The invention discloses a macromolecule chelating agent and a preparation method thereof. The method enables iminodiacetonitrile and epoxy chloropropane to perform ring-opening reaction in absolute ethyl alcohol so as to enable the iminodiacetonitrile and the epoxy chloropropane to be cohered in the same molecule, NaOH is added to enable adjacent -OH and CI in the molecule to remove HCI under alkaline condition so as to generate epoxy group in closed-ring mode, the epoxy group and diallylamine perform ring-opening reaction to enable the diallylamine to be connected in the molecule, -CN group is hydrolyzed under alkaline condition to obtain carboxyl-COO-, and finally the macromolecule chelating agent is obtained by adopting radical aqueous solution polymerization. Each structure unit in the molecule of the macromolecule chelating agent contains a strong chelating group -N (CH2COO-)2 which can form chelate containing a plurality of stable five-membered rings with a plurality of kinds of metal ions. The method is wide in application range and particularly suitable for being combined with an ultra-filtration method to separate and extract rare metals and precious metals, efficient separation and enrichment of heavy metals, advanced treatment of waste water of heavy metals and the like.

The present disclosure provides for a method of preparing and using an emulsion for treating a papermaking process. The emulsion is an oil-in-water emulsion of alkenyl succinic anhydride emulsified with a polymer comprising at least one primary or secondary amine containing monomer. The method comprises adding an oil-in-water emulsion to the papermaking process; wherein the oil-in-water emulsion comprises alkenyl succinic anhydride emulsified with a polymer comprising at least one primary or secondary amine containing monomer; and wherein the oil-in-water emulsion is added in an amount sufficient to improve sizing of the paper produced by the papermaking process. The primary or secondary amine may be a secondary amine comprising diallylamine, and the polymer may be a diallylamine-acrylamide copolymer.

An improved antifungal composition for topical application to the skin and nails comprises: (1) an allylamine antifungal compound; (2) an aliphatic alcohol substituted with an aromatic substituent in which the allylamine antifungal compound is soluble to a degree that a therapeutically effective concentration of the allylamine antifungal compound can be applied topically in solution; (3) a lower aliphatic alcohol in which the aromatic alcohol is soluble; and (d) water or a water-compatible solvent mixture. The allylamine antifungal compound can be terbinafine or naftifine. The aliphatic alcohol substituted with an aromatic substituent can be benzyl alcohol or phenethyl alcohol. The lower aliphatic alcohol can be ethyl alcohol or isopropyl alcohol. In an alternative, the composition can further comprise an additional antifungal compound. Another aspect of the invention is a method for treatment of a fungal infection of skin or nails comprising administering the antifungal composition of the present invention topically to the skin or nails in an amount therapeutically effective to treat the fungal infection.

The invention relates to a preparation method for organosilicone positive ion waterborne polyurethane. The preparation method comprises the following steps: (1) reacting diethylamine with allyl chloride in the presence of an alkaline to generate diethyl allylamine; (2) carrying ring opening on D4 under the effect of a catalyst and blocking by using HMM (hexamethylmelamine) to generate dihydro-blocked polysiloxane; (3) carrying out hydrosilylation reaction on dihydro-blocked polysiloxane and diethyl allylamine; (4) carrying out quaternization reaction on the production of the addition reaction and chloropropanol; and (5) generating a prepolymer through reaction between HMDI and PTMEG1000 and extending chains in water by using the quaternization product to generate the organosilicone positive ion waterborne polyurethane. The preparation method provided by the invention is simple and convenient to operate, mild in reaction condition, free of carbonization and products are easily separated and recycled. Firstly, polysiloxane with amido at two terminals is salified and then chains are extended, and the conventional step of salifying positive ions with an acid and then neutralizing is cancelled, so that use of a nitrogen-containing chain extender is reduced, the cost is saved and the problem that positive ion polyurethane gets yellow is prevented.

The invention discloses Prussian blue and Prussian blue analogue nanosheet film materials and an in-situ preparation method thereof. A substrate is modified with two high-molecular polymers with opposite charges, namely PAH (poly allylamine hydrochloride) and PSS (sodium polystyrene sulfonate), and Prussian blue or Prussian blue analogue square nanosheets are synthesized in situ on the modified substrate with metal ionic salt and potassium ferrocyanide as raw materials. A test of a prepared nanosheet film through ultraviolet-visible spectroscopy, a scanning electron microscope and a transmission electron microscope proves that the nanosheets have controllable size and are uniformly dispersed. The growth direction of the nanosheets is limited by the porous network of the high-molecular polymers, so that the nanosheets are square or rectangular, water is used as a solvent in the whole preparation process of the film and is harmless to the environment, the preparation process is simple and feasible, the cost is low, equipment is simple, the film materials with different kinds of functionality are obtained by changing the variety of simple ions, and the in-situ preparation method has important application value in the field of material preparation.

Aqueous dispersion for the chemical-mechanical polishing of metal surfaces, containing a metal oxide powder and a cationic, surface-active polymer, wherein the metal oxide powder is silicon dioxide, aluminium oxide or a mixed oxide of silicon dioxide and aluminium oxide, and the cationic, surface-active polymer is a polyallyl amine or polydiallyl amine dissolved in the dispersion and having a weightaverage molecular weight of less than 100,000 g / mol. The dispersion can be used for the chemical-mechanical polishing of metallic layers and of metallic films, which are applied to an insulating barrier layer.

The invention discloses an amidated graphene oxide modified polycarboxylate superplasticizer. The main raw materials include: graphene oxide, methylallyl polyoxyethylene ether, acrylic acid, allyl amine, maleic anhydride, water, an oxidizing agent, a reducing agent, a condensation agent and an activating agent. The main method includes: firstly subjecting allyl amine and graphene oxide to amidation reaction to prepare allyl amine modified graphene oxide, then mixing the obtained allyl amine modified graphene oxide with methylallyl polyoxyethylene ether, acrylic acid and maleic anhydride, carrying out polymerization reaction under the initiation of the oxidizing agent and reducing agent, thus obtaining the amidated graphene oxide modified polycarboxylate superplasticizer. The method provided by the invention mainly utilizes the amidation reaction of allyl amine and graphene oxide to realize close combination of a graphene oxide two-dimensional nano lamellar structure with polycarboxylate superplasticizer molecules, so that graphene oxide can be better dispersed during application in concrete, and the synthesized superplasticizer product has more stable performance.

The invention discloses amphiprotic amphiphilic leather retanning fatting agent and a preparation method of the amphiprotic amphiphilic leather retanning fatting agent. The constituent of the amphiprotic amphiphilic leather retanning fatting agent is (methyl) crylic acid-N-alkyl diene propyl amine-diallylamine terpolymer. According to the preparation method of the amphiprotic amphiphilic leather retanning fatting agent, N-alkyl diene propyl amine is firstly prepared, then the N-alkyl diene propyl amine, diallylamine, and (methyl) crylic acid are adopted for a free radical copolymerization reaction under the acidic condition to obtain an aqueous dispersoid containing the (methyl) crylic acid-N-alkyl diene propyl amine-diallylamine terpolymer, the solid content of a product is adjusted to 15-20% with water, and the amphiprotic amphiphilic leather retanning fatting agent is obtained. The molecular structure of the amphiprotic amphiphilic leather retanning fatting agent contains carboxyl of negative ions and tertiary amino of positive ions, and the polymer can display different electrical properties under different conditions of potential of hydrogen (PH), meanwhile the polymer contains alkyl of a long chain, and functions of lubrication fibers can be achieved. The polymer has the function of retanning, fatting and dyeing assistance at the same time, physical and mechanical properties of processed crust leather, such as tensile strength, fullness, softness and elasticity, are all improved, the surface of the processed crust leather is strong in lubrication feel and comfortable in hand feel, and the leather has a good waterproof performance.

Novel ampholytic ter-polymers comprising at least an ethylenically unsaturated cationic monomer, a monomer containing a carboxylic acid or sulfonic acid group and diallyamine or derivative are claimed. Further, the ter-polymers may be used in personal care or personal washing compositions optionally in the presence of conditioning agents such as silicone, fatty amines, fatty amine oxides and fatty quaternaries and / or various benefit agents. The ter-polymer compositions are especially useful in the treatment of keratin-containing substrates. Keratin substrates include, but are not limited to, animal and human hair, skin and nails.

The invention discloses a preparation method for a porous PtAg@Pt octahedral nanoparticle. Poly allyamine hydrochloride (PAH) is adopted as a complexing agent, a stabilizing agent and a morphology guide agent, and HCHO (40%) is adopted as a reducing agent; K2PtC14 and an AgNO3 precursor are jointly reduced into Pt-Ag octahedral alloy through a hydrothermal reduction method at one step; and after the obtained nanoparticle is centrifuged and washed, in the ultrasonic environment, concentrated nitric acid is added for etching, and therefore the porous PtAg@Pt octahedral nanostructure is obtained. According to the Pt-based alloy nanoparticle prepared through the method, due to the unique porous octahedral structure of PtAg@Pt, the nanoparticle shows high catalytic activity and stability on formic acid electrocatalytic oxidation (an FAOR) and can be applied to anode catalysts of fuel batteries.

The present invention relates to a novel one step process for preparing cross-linked poly(allylamine) polymers or salts thereof using the novel cross-linking agent of Formula (IV). This invention also relates to the compound of Formula (IV) as well as to a process to obtain it. The cross-linked poly(allylamine) polymers of the invention are useful in medicine as substrate-binding polymers.