CPE-cg-HEA热塑性弹性体的合成  

Synthesis and Structure of Thermoplastic Elastomer CPE-cg-HEA

作　　者：万耿平[1] 孙莺莺[1] 赵季若[1] 冯莺[1] 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《高分子材料科学与工程》2009年第7期31-33,37,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(50373042)

摘　　要：利用氯化原位接枝方法在聚乙烯（PE）主链上接枝丙烯酸-2-羟基乙酯（HEA）,制得聚乙烯氯化接枝丙烯酸-2-羟基乙酯,记作：CPE-cg-HEA。以红外光谱（IR）和核磁共振氢谱（1H-NMR）对其结构进行了分析;同时讨论了反应条件,包括反应温度,产物氯含量,原料配比以及氯气流量对产物接枝率的影响。结果表明,反应温度为110℃时,接枝率较高;CPE-cg-HEA的接枝率随HEA用量增加而提高,当HEA加入量达4-8份时,接枝率较高;随着氯含量的增加,反应时间延长,产物接枝率逐渐增大。2-hydroxy ethyl acrylate （HEA） was grafted onto the Polyethylene （PE） main chain via in-situ chlorinating graft copolymerization. The structure was analyzed by using infrared spectroscopic（IR） and hydrogen nuclear magnetic resonance spectrum（^1H-NMR） sequentially. The effect of reactive condition including reaction temperature, chlorine content, ingredient proportion and the flow rate of chlorinate on the graft degree was also discussed in the paper. The experimental results indicate： graft degree reaches maximum when reaction temperature is 110℃. Graft degree of chlorinated polyethylene（CPE）-cg-HEA increases with the increase of HEA addition, and graft degree reaches maximum when the addition of HEA reaches 4-8 parts. Graft degree increases gradually with the increase of chlorine content since reaction time is prolonged.

关 键 词：氯化原位接枝 聚乙烯 丙烯酸-2-羟基乙酯 核磁共振氢谱 接枝率 

分 类 号：TQ334.2[化学工程—橡胶工业]