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Preparation of quaternaries hyper branched polycation electrolyte

A technology of cationic electrolytes and quaternary ammonium salts, applied in the field of hyperbranched polycationic electrolytes, can solve problems such as unrealizable, and achieve the effect of environmental protection

Inactive Publication Date: 2008-10-08
JIANGSU POLYTECHNIC UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Third, since the initiating monomer in this method is water-insoluble, it is impossible to carry out SCATRCP directly with other ionic monomers of this type of initiating monomer, because the charged monomer can only be dissolved in in the water

Method used

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  • Preparation of quaternaries hyper branched polycation electrolyte
  • Preparation of quaternaries hyper branched polycation electrolyte
  • Preparation of quaternaries hyper branched polycation electrolyte

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1: Utilize SCATRP of MEBDAB to prepare hyperbranched polycation electrolyte PMEBDAB

[0044] Add MEBDAB (4.31g, 10mmol), CuBr (14.4mg, 0.1mmol), PMDETA (34.6mg, 0.2mmol) and 8ml of water / ethanol (volume ratio 1 / 1) into a round bottom flask, repeatedly evacuate and fill with argon , and then sealed and reacted at 90°C for 2h. After the reaction, the polymerization system was precipitated in acetone, filtered and washed three times with acetone to remove the catalyst, and dried in vacuum at 70°C. The obtained purple solid was the hyperbranched polycation electrolyte, poly-N-methacryloyloxyethyl -N-(α-Bromoisobutyryloxy)ethyl-N,N-dimethylammonium bromide, (PMEBDAB). The structure of PMEBDAB, including molecular weight and degree of branching, was used 1 H-NMR analysis, see accompanying drawing 1. The peaks with chemical shifts at 5.6 and 6.0 in the figure are protons of double bonds (CH 2 =); The peak of chemical shift at 3.6~3.9 is the methylene proton (O=C...

Embodiment 2

[0045] Embodiment 2: Utilize SCATRP of MEBDAB to prepare hyperbranched polycation electrolyte PMEBDAB

[0046] Add MEBDAB (4.31g, 10mmol), CuBr (14.4mg, 0.1mmol), PMDETA (34.6mg, 0.2mmol) and 8ml of water / ethanol (volume ratio 1 / 1) into a round bottom flask, repeatedly evacuate and fill with argon , and then sealed and reacted at 90°C for 24 hours. After the reaction, the polymerization system was precipitated in acetone, filtered and washed three times with acetone to remove the catalyst, and dried in vacuum at 70°C. The obtained purple solid was the hyperbranched polycation electrolyte, PMEBDAB. The structure of PMEBDAB, including molecular weight and degree of branching, was used 1 H-NMR analysis, see accompanying drawing 2. The peaks with chemical shifts at 5.6 and 6.0 in the figure are protons of double bonds (CH 2 =); The peak of chemical shift at 3.6~3.9 is the methylene proton (O=C-O-CH) that is connected with ester group 2 -); The peak with a chemical shift of 3.4...

Embodiment 3

[0047] Embodiment three: Utilize the SCATRP of MECDAC to prepare hyperbranched polycation electrolyte PMECDAC

[0048] Add MECDAC (1.66g, 5mmol), CuCl (4.95mg, 0.05mmol), bPy (15.6mg, 0.1mmol) into 6ml of water / THF (volume ratio 1 / 1), repeatedly evacuate and inflate with argon, and then seal in React at 90°C for 18 hours. After the reaction, the polymerization system was precipitated in acetone, filtered and washed three times with acetone to remove the catalyst, and dried in vacuum at 70°C. The obtained white solid was the hyperbranched polycation electrolyte, PMECDAC. The product structure of PMECDAC, including molecular weight and degree of branching, was used 1 H-NMR analysis, see accompanying drawing 3. The peak with a chemical shift of 7.6 in the figure is the proton of the benzene ring (-C 6 h 4 -); The peaks with chemical shifts at 5.6 and 6.0 are double bond protons (CH 2 =); The peak with chemical shift at 4.6 is the methylene proton hydrogen (-CH 2 -C 6 h 4 ...

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Abstract

The invention discloses a synthesis method to prepare hyperbranched polycation electrolyte based on self-condensing atom transfer radical (co)polymerization and is characterized in that the method makes use of an initiated monomer containing quaternary ammonium salt structures to obtain hyperbranched polycation electrolytes through the aqueous phase self-condensing atom transfer radical copolymerization of the initiated monomer, or through the aqueous phase self-condensing atom transfer radical copolymerization of other cationic unsaturated monomers. The method can obtain the polycation electrolyte simultaneously provided with high branching degree and high charge density in one step, and is simple in procedures; the obtained hyperbranched polycation electrolyte can be used for phase transfer catalysis, flow modification, immune diagnostic reagent and other occasions.

Description

technical field [0001] The present invention relates to the self-condensation vinyl atom transfer polymerization of initiator monomer containing quaternary ammonium salt structure in water or water-containing mixed solvent or the self-condensation vinyl atom transfer copolymerization with other cationic unsaturated monomers to prepare hyperbranch method for catalyzing polycation electrolytes. Background technique [0002] Polyelectrolytes refer to polymer compounds that are covalently bonded and have ionic or ionizable groups. According to the nature and distribution of the charges they carry or can generate, they can be divided into: (1) only carry Negatively charged polyanionic electrolytes; (2) polycationic electrolytes that only carry positive charges; (3) polymer chains contain both positive and negative charges, but the positive and negative charges are distributed on different monomer units, such polymers are called It is a polyampholyte; (4) The polymer chain contai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F20/34C08F4/10C08F4/26
Inventor 翟光群高俊王翠宋艳俞强
Owner JIANGSU POLYTECHNIC UNIVERSITY
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