马来酸聚乙二醇单甲醚单酯的合成  

Syntheseis of mono polyethylene glycol maleate

作　　者：匡启荣[1] 胡登华[1] 官仕龙[1] 宋银霞[1] 

机构地区：[1]武汉工程大学绿色化工过程省部共建教育部重点实验室湖北省新型反应器与绿色化学工艺重点实验室,湖北武汉430074

出　　处：《武汉工程大学学报》2009年第12期8-10,共3页Journal of Wuhan Institute of Technology

摘　　要：用聚乙二醇单甲醚和马来酸酐反应合成了马来酸聚乙二醇单甲醚单酯．研究了原料配比、催化剂种类及用量、反应时间、反应温度等对酯化率的影响．结果表明：以3％～4％对甲苯磺酸为催化剂，马来酸酐与聚乙二醇单甲醚的摩尔配比为1：1～1：1．1，温度为100～110℃时反应能在短时间内酯化完全，用红外光谱对产物的结构进行了表征，证实合成产物即为目标产物．Mono polyethylene glycol maleate was synthesized by esterification of maleic anhydride and Methoxypolyethylene glycols under the existence of different catalyst and use toluene as solvent. It was found that if 3%-4% toluene-p-sulfonic acid as catalyst has used, mol ratio of acid to Methoxypolyethylene glycols was （1-1. 1） ： 1, and the reaction temperature was 100-110 ℃, the highest productivity can be obtained in the shortest time. By infrared spectrum analysis of the product, that the mono polyethylene glgcol malenate was successfully synthesized.

关 键 词：聚乙二醇单甲醚 马来酸单酯 马来酸酐 

分 类 号：TQ31[化学工程—高聚物工业]