36 results about "Diethyl chlorophosphate" patented technology

The invention discloses functional pyrophyllite powder and an application of the functional pyrophyllite powder in a reinforced and toughened PC-ABS (polycarbonate-acrylonitrile butadiene styrene) alloy. The functional pyrophyllite powder is prepared by performing acid treatment and alkali treatment on pyrophyllite powder, and then adding methacrylamide, silicane, triphenyl phosphate and diethyl chlorophosphate for functional modification. Compared with the prior art, the functional pyrophyllite powder is applied to preparation of the toughened and reinforced electroplated PC-ABS alloy, and aprepared toughened and reinforced electroplated PC-ABS alloy material has good electroplating performance, and higher tensile strength, bending strength, impact toughness and flame retardance, is extensive in application scope, and can be used for the field of forming various products that have requirements of higher comprehensive performance and good flame resistance on materials and higher surface requirements and are required to be electroplated.

The invention discloses a phosphorylated polymer composite film for a full vanadium flow battery and a preparation method thereof. The polymer composite film has a structure shown as a formula (I). The preparation method comprises the following steps of: mixing a monomer mixture, chloromethylate polysulfone, cuprous chloride, genin and a solvent; performing deoxidization; perfomring polymerization; dissolving the obtained polymer into dioxane; adding triethylamine and the cuprous chloride; adding diethyl chlorophosphate dropwise; reacting and filtering; adding filtrate into norml hexane to precipitate; redissolving the precipitate into chloroform; adding the solution into the norml hexane again to precipitate; washing the precipitate; drying to obtain the phosphorylated polymer; dissolving the phosphorylated polymer into a high-boiling-point solvent to obtain phosphorylated polymer solution; forming a film on a glass plate; demoulding in water to obtain a phosphorylated polymer film; placing the phosphorylated polymer film into concentrated hydrochloric acid to perform reflux and hydrolysis; taking out the phosphorylated polymer film to wash with water; and drying to obtain the product. The phosphorylated polymer composite film has low vanadium ion permeability, high proton conductivity, stable mechanical and chemical properties and low cost.

The invention provides a new method of the one-pot synthesis of methylthio aryl alkynye 1 based on 4-sulfenyl-1-aryl-1,3-butanedione substrates. lithium hexamethyldisilazide (LiHMDS) is added in tetrahydro furan (THF) solution containing 4-sulfenyl-1-aryl-1, 3-diacetyl under the protection of low temperature nitrogen, and the stirring is carried out; in addition, diethyl chlorophosphate [ClP(O)(OEt)2] is dripped into the above-mentioned reaction system, the temperature rises to reach the room temperature naturally after the dripping is finished, and stirring is carried out continuously. The reaction system is cooled down to get low temperature again, then LiHMDS is dripped into the reaction system, and stirring is carried out continuously for reaction under the temperature. Reaction mixtures are processed through conventional post-processing and column chromatography separation, and then methylthio aryl alkynye is obtained. The new method is simple, convenient and economical to prepare methylthio aryl alkynye.

The invention relates to a fluorescent probe for detecting sarin and an analogue thereof. The fluorescent probe comprises a compound which is loaded on a substrate and has a structure shown as a formula I, wherein the formula I is shown in the description. The invention further provides a synthesis method and application of the fluorescent probe for detecting the sarin and the analogue thereof. According to the application provided by the invention, when a compound with the structure shown as the formula I in the fluorescent probe is in contact with the sarin or the DCP (Diethyl Chlorophosphate) in air, the fluorescence intensity and the emission wavelength are both changed, and gas-phase detection of the sarin and the DCP can be realized. The compound with the structure shown as the formula I can have one or more terpyridines; when the sarin or the DCP reacts with one certain pyridine in one certain terpyridine in a molecule, charge transferring from the fluorescent probe to the sarin or the DCP occurs; meanwhile, energy transferring from a polymer core to a peripheral radical occurs, and fluorescent quenching of the whole molecule is caused, so that the fluorescent probe has excellent sensing performance.

The invention discloses a structure controllable phosphorylated polymer composite film used for a vanadium battery and a preparation method thereof. The polymer composite film has the structure shown in the formula (I). The preparation method of the polymer composite film comprises the steps of: preparing a copolymer containing an alkynyl; preparing polysulfone containing an azide group; preparing a polymer; preparing a polymer containing an oxhydryl; dissolving the polymer containing the oxhydryl in dioxane, adding triethylamine and cuprous chloride, dropping diethyl chlorophosphate, filtering after reaction, adding filtrate in normal hexane to be precipitated, dissolving the precipitate in chloroform again, adding the solvent in the normal hexane to be precipitated again, and washing and drying the precipitate to obtain a phosphorus-esterificated polymer; dissolving the phosphorus-esterificated polymer in a high-boiling-point solvent to obtain a phosphorus-esterificated polymer solution; forming a film on a glass plate, and demolding in water to obtain a phosphorus-esterificated polymer film; and putting the film in concentrated hydrochloric acid for back flow and hydrolysis, taking the film out, washing and drying the film to obtain a product. The composite film has low permeability of vanadium ions, good proton conductivity, stable mechanical performance and chemical performance, and low cost.

The invention provides an organic fluorescent molecule and its preparation method, a fluorescent sensor and its application, and a standard fluorescent card, belonging to the technical field of fluorescent sensing. The skeleton of the organic fluorescent molecule provided by the present invention is made of 2,2′:6′,2″ terpyridine (TPY) and an electron-donating group, and the TPY group is used as an electron-accepting group. After the A group in formula I), an intramolecular charge transfer state (CT) can be formed to construct a donor-acceptor type organic fluorescent material; at the same time, the TPY group can also be used as a recognition site for a sensing reaction to the parent Electrical nerve agent molecules are detected. After the organic fluorescent molecules are made into sensors, efficient and rapid fluorescence / production of trace sarin poison (Sarin) and / or diethyl chlorophosphate (DCP) in liquid and gas phases can be realized. Color dual-channel detection, fast response, good selectivity, high sensitivity and reusable.