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Application of DMC bimetal complex in preparation of hydroxyl-terminated polyether quaternary ammonium salt

A technology of hydroxyl-terminated polyether and quaternary ammonium salt, which is applied in the field of preparation of hydroxyl-terminated polyether quaternary ammonium salt, and can solve problems such as difficult purification of products, complicated preparation technology and process

Active Publication Date: 2020-01-21
JIANGSU OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation technology and process are complex, and the product is not easy to purify

Method used

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  • Application of DMC bimetal complex in preparation of hydroxyl-terminated polyether quaternary ammonium salt
  • Application of DMC bimetal complex in preparation of hydroxyl-terminated polyether quaternary ammonium salt
  • Application of DMC bimetal complex in preparation of hydroxyl-terminated polyether quaternary ammonium salt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Weigh 21 grams of N-benzyl-N, N-dimethyl-N-(β-hydroxyethyl) ammonium chloride and 35 mg of zinc hexacyanocobaltate dissolved in 40 grams of ethylene glycol diethyl ether, and place Put it into the autoclave, fill it with nitrogen and deoxygenate for 3 minutes, then press 5 grams of ethylene oxide, control the temperature of the reaction material in the autoclave to 100°C, trigger the ring-opening polymerization reaction, and the pressure in the autoclave can rise to 0.23MPa When the temperature of the material in the autoclave was in the range of 100 to 130°C, after the pressure in the autoclave began to drop, 50 grams of ethylene oxide was continuously pressed into the autoclave, and after the addition of ethylene oxide, continue for 0.5 hours For the aging reaction, after the pressure in the autoclave no longer drops, reduce the temperature of the reaction materials in the autoclave to room temperature, transfer the reaction materials in the autoclave to the still, and...

Embodiment 2

[0037] According to the method and operating steps of Example 1, N-benzyl-N,N-dimethyl-N-(β-hydroxyethyl)ammonium chloride was replaced with 33 grams of N-dodecyl-N bromide ,N-Dimethyl-N-(β-hydroxyethyl) ammonium, can produce light yellow waxy bromide N-dodecyl-N,N-dimethyl-N-(α-hydroxyl Polyether ammonium, according to the GB / T 30915-2014 method, its hydroxyl value was measured to be 77.01mgKOH / g (according to the amount of ethylene oxide, the hydroxyl value should be about 88mgKOH / g).

Embodiment 3

[0039] According to the method and operation steps of Example 1, N-benzyl-N,N-dimethyl-N-(β-hydroxyethyl)ammonium chloride was replaced with 30 grams of N-benzyl-N,N-chloride -Di-n-butyl-N-(β-hydroxyethyl) ammonium, the amount of ethylene oxide is increased to 120 grams, and the light yellow waxy N-benzyl-N,N-di-n-butyl chloride can be obtained According to the method of GB / T 30915-2014, the hydroxyl value of N-(α-hydroxy polyether) ammonium is 132.33mgKOH / g (according to the amount of ethylene oxide, the hydroxyl value should be 150mgKOH / g) about).

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Abstract

A hydroxyl-terminated polyether quaternary ammonium salt, also called alpha-hydroxyl polyether quaternary ammonium salt, can be used for preparing various functional polymer materials such as cationicpolyurethane, cationic antibacterial hydrogel, a cationic / nonionic surfactant, functional ionic liquid and the like. The alpha-hydroxyl polyether quaternary ammonium salt is prepared by taking beta-hydroxyethyl quaternary ammonium salt as an initiator and the DMC bimetal complex as a catalyst and by utilizing a ring-opening polymerization reaction of alkylene oxide. The obtained hydroxyl-terminated polyether quaternary ammonium salt is small in polydispersity coefficient and high in product yield; the use amount of the DMC bimetal complex in the hydroxyl-terminated polyether quaternary ammonium salt product is small, separation or recovery is not needed, and the performance of the obtained hydroxyl-terminated polyether quaternary ammonium salt product and the preparation, processing and use characteristics of subsequent products are not influenced.

Description

technical field [0001] The invention relates to the application of DMC bimetallic complexes, in particular to the application of DMC bimetallic complexes as catalysts for ring-opening polymerization of alkylene oxides in the preparation of hydroxyl-terminated polyether quaternary ammonium salts, and belongs to the field of organic functional materials. [0002] technical background [0003] Hydroxyl-terminated polyether quaternary ammonium salt, also known as α-hydroxyl polyether quaternary ammonium salt, belongs to a class of functional polymer materials, has some special physical, chemical and biological characteristics and functions, and can be used in cationic polyurethane, cationic antibacterial hydrogel, cationic / The preparation of multi-field functional polymer materials such as nonionic surfactants and functional ionic liquids has broad application prospects, so it is meaningful to research and develop synthesis and production technologies and processes with practical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/26
CPCC08G65/2663C08G65/2618
Inventor 班鑫鑫俞建敏樊变花邱柱朱士豪彭尚殷娟张田林
Owner JIANGSU OCEAN UNIV