Poly-quaternary ammonium salt-typed monomer (methyl) acrylyloxyethyl trimethyl ammonium chloride and synthetic method

A technique of acryloyloxyethyltrimethylammonium chloride and a synthetic method, which is applied in the preparation of amino hydroxyl compounds, chemical instruments and methods, and the preparation of organic compounds, and can solve the problems of limited development and application, high production costs, and complicated procedures and other problems, to achieve the effects of low production cost, good anti-expansion effect and wide source of raw materials

Inactive Publication Date: 2015-03-11
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Above-mentioned technique synthesizes (meth)acryloyloxyethyltrimethylammonium chloride with two steps, and operation is comparatively complicated in industrial production, and production cost is high, has limited to (meth)acryloyloxyethyltrimethylammonium chloride The development and application of ammonium monomer in the synthesis of new polyammonium salt compounds, the application of this type of polyammonium salt compounds in oil field production operations is also subject to certain restrictions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) 7.0 g of choline chloride and 5.6 g of acrylic acid were put into 320 g of acetonitrile solvent. Adding 0.1 g of catalyst DMAP and 10 g of dehydrating agent DCC, reacting at 20° C. for 12 hours, filtering, and concentrating to obtain the crude product of polyquaternary ammonium salt monomer acryloxyethyl trimethyl ammonium chloride.

[0020] (2) Dissolve the crude product of polyquaternary ammonium salt monomer acryloyloxyethyltrimethylammonium chloride in 25g ethanol solution, and add 140g ether to precipitate a white solid, which is filtered, washed and dried to obtain a white The polyquaternary ammonium salt monomer acryloyloxyethyl trimethyl ammonium chloride.

Embodiment 2

[0022] (1) Put 9.2 g of choline bromide and 6.2 g of methacrylic acid into 350 g of acetonitrile solvent. Add 0.15g of catalyst DMAP and 12g of dehydrating agent DCC, react at 25°C for 10h, filter, and concentrate to obtain the crude product of polyquaternary ammonium salt monomer methacryloxyethyltrimethylammonium chloride.

[0023] (2) Dissolve the crude product of polyquaternary ammonium salt monomer methacryloxyethyltrimethylammonium chloride in 30g ethanol solution, then add 150g ethyl acetate to precipitate a white solid, which is filtered, washed, After drying, a white polyquaternary ammonium salt monomer methacryloxyethyl trimethylammonium chloride was obtained.

Embodiment 3

[0025] (1) 4.1 g of choline acetate and 4.0 g of methacrylic acid were put into 240 g of acetonitrile solvent. Add 0.08 g of catalyst DMAP and 5.8 g of dehydrating agent DCC, react at 30° C. for 9 hours, filter and concentrate to obtain the crude product of polyquaternary ammonium salt monomer methacryloxyethyl trimethyl ammonium chloride.

[0026] (2) Dissolve the crude product of polyquaternary ammonium salt monomer acryloyloxyethyltrimethylammonium chloride in 15g ethanol solution, and then add 100g acetone to precipitate a white solid, which is filtered, washed and dried to obtain a white The polyquaternary ammonium salt monomer methacryloxyethyl trimethylammonium chloride.

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Abstract

The invention relates to a monomer (methyl) acrylyloxyethyl trimethyl ammonium chloride of a poly-quaternary ammonium salt. The monomer is synthesized through following steps: (1) with (methyl) acrylic acid and a choline salt compound as raw materials and in a mixed solvent system composed of a catalyst 4-dimethylaminopyridine (DMAP), a dehydrating agent N,N-dicyclohexylcarbodiimide (DCC) and a solvent acetonitrile, carrying out an esterification reaction at 5-50 DEG C for 8-15 hours to synthesize the monomer (methyl) acrylyloxyethyl trimethyl ammonium chloride of a poly-quaternary ammonium salt in one step. The monomer (methyl) acrylyloxyethyl trimethyl ammonium chloride of the poly-quaternary ammonium salt can be reacted with various vinyl monomers to synthesize high-molecular materials having various functions, for example, the monomer can be co-polymerized with acrylamide to synthesize a novel poly-quaternary ammonium salt compound which can be used as a clay expansion inhibitor used in oilfield exploitation, a sewage treatment agent and the like.

Description

Technical field [0001] The invention relates to a polyquaternary ammonium salt monomer (meth)acryloyloxyethyl trimethyl ammonium chloride and a synthesis method. The synthesized monomer (meth)acryloyloxyethyl trimethyl chloride Ammonium can be self-polymerized or copolymerized with acrylamide monomer to form a new type of polyquaternary ammonium compound as a clay swelling inhibitor. Background technique [0002] (Meth)acryloyloxyethyltrimethylammonium chloride is a very widely used (meth)acrylate monomer. Its molecular structure contains ester groups, quaternary ammonium salts and alkene functional groups. It can interact with a variety of ethylene The basic monomers are homopolymerized or copolymerized into various functional polymer materials, and its series of products have a wide range of uses, such as sewage treatment, paper reinforcement, surfactants, oilfield mining and other fields. In recent years, in the field of oilfield exploitation, polymers represented by polyacry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C219/08C07C213/06C08F120/34C08F220/34C08F220/56
Inventor 周建成杨善波李树强李乃旭刘方园
Owner SOUTHEAST UNIV
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