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Amphoteric comb block polymer surfactant and preparation method thereof

A technology of surfactants and block polymers, applied in chemical instruments and methods, chemical/physical processes, dissolution, etc., can solve problems such as emulsion coalescence, sedimentation, and water resistance of emulsions

Inactive Publication Date: 2011-09-14
赵争艳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary emulsifiers are only physically adsorbed on the surface of latex particles, and are easy to desorb, especially under the action of shear and freeze-thaw cycles, resulting in the coalescence and sedimentation of the emulsion; the emulsifier remaining in the latex film will also affect the emulsion. Water resistance, solvent resistance, gloss and adhesion, etc.

Method used

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  • Amphoteric comb block polymer surfactant and preparation method thereof
  • Amphoteric comb block polymer surfactant and preparation method thereof
  • Amphoteric comb block polymer surfactant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1mol 2-acrylamido-2-methyl-propanesulfonic acid (AMPS), 9mol butyl methacrylate (BMA), 0.033g catalytic chain transfer agent (COBF), 1.6mol water-soluble The nitrogen initiator azobisiso(azaminoethyl)butyl ether (AIBA). Stir and mix evenly, blow high-purity nitrogen gas after sealing, and put it in a water bath at 70-80°C for 9-11 hours. Add 0.5 mol butyl methacrylate (BMA), 1.6 mol water-soluble azo initiator azobisiso(azidoethyl) butyl ether (AIBA), 9.5 mol 2-hydroxyhexyl methacrylate (HEMA ), then seal the reactor and blow high-purity nitrogen into it, and react at 70-80° C. for 9-11 hours. After the reaction, it was purified with a mixed solution of methanol and distilled water at a volume ratio of 1:1. The product was dried in a vacuum oven at 40° C. for 24 hrs to obtain a dry product with a yield of 71%.

Embodiment 2

[0024] 2mol 2-acrylamido-2-methyl-propanesulfonic acid (AMPS), 8mol butyl methacrylate (BMA), 0.033g catalytic chain transfer agent (COBF), 1.6mol water-soluble The nitrogen initiator azobisiso(azaminoethyl)butyl ether (AIBA). Stir and mix evenly, blow high-purity nitrogen gas after sealing, and put it in a water bath at 70-80°C for 9-11 hours. Add 0.5 mol butyl methacrylate (BMA), 1.6 mol water-soluble azo initiator azobisiso(azidoethyl) butyl ether (AIBA), 9.5 mol 2-hydroxyhexyl methacrylate (HEMA ), then seal the reactor and blow high-purity nitrogen into it, and react at 70-80° C. for 9-11 hours. After the reaction, it was purified with a mixed solution of methanol and distilled water at a volume ratio of 1:1. The product was dried in a vacuum oven at 40° C. for 24 hrs to obtain a dry product with a yield of 67%.

Embodiment 3

[0026] 2mol 2-acrylamido-2-methyl-propanesulfonic acid (AMPS), 8mol butyl methacrylate (BMA), 0.033g catalytic chain transfer agent (COBF), 1.6mol water-soluble The nitrogen initiator azobisiso(azaminoethyl)butyl ether (AIBA). Stir and mix evenly, blow high-purity nitrogen gas after sealing, and put it in a water bath at 70-80°C for 9-11 hours. Add 0.4mol butyl methacrylate (BMA), 1.6mol water-soluble azo initiator azobisiso(azidoethyl) butyl ether (AIBA), 9.6mol 2-hydroxyhexyl methacrylate (HEMA ), then seal the reactor and blow high-purity nitrogen into it, and react at 70-80° C. for 9-11 hours. After the reaction, it was purified with a mixed solution of methanol and distilled water at a volume ratio of 1:1. The product was dried in a vacuum oven at 40° C. for 24 hrs to obtain a dry product with a yield of 72%.

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Abstract

The invention discloses an amphoteric comb block polymer surfactant and a preparation method thereof. The invention is characterized in that: a self-made complex of oxime boron fluoride (COBF) is taken as a catalyst, azoisobutyronitrile (AIBN) is taken as an initiator, butyl methacrylate, 2-acryloylamino-2-methyl-1-propanesulfonic acid, 2-hydroxyethyl methacrylate and the like are taken as raw materials, and the polymer surfactant of which the terminal is provided with double bond, sulfonic group and hydroxyl is synthesized by a catalytic chain transfer polymerization method. Compared with the traditional surfactant, the prepared product can be more widely applied to various fields; moreover, the synthetic method is simple and convenient, easy to control and suitable for industrial production.

Description

technical field [0001] The invention relates to a surfactant, in particular to an amphoteric comb-shaped block polymer surfactant, and also relates to a preparation method of the amphoteric comb-shaped block polymer surfactant. Background technique [0002] Due to its special properties, amphoteric surfactants are cationic in acidic media, anionic in alkaline media, and amphoteric when the pH is 6-8, so they can interact with other ionic surfactants in a wider pH range. It is well compounded with non-ionic surfactants and widely used in various fields. [0003] Polymer surfactant (polymer surfactant) refers to a relative molecular mass of more than several thousand (generally 10 3 ~10 6 ) and have a certain surface activity. Low-molecular-weight surfactants are a good class of surface-active substances. Recent studies have shown that some high-molecular-weight polymers also have strong surface activity, and have high temperature resistance, strong emulsifying ability, exc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/36B01F17/38C09K23/36C09K23/38
Inventor 赵争艳
Owner 赵争艳