甲基丙烯酸甲酯大单体法接枝氯丁橡胶结构与性能研究  

Study on the structure and properties of chloroprene rubber grafted by methyl methacrylate macromonomer

作　　者：齐崧岑 申麟 夏浙安 陈耘 钱军 李欣欣 Qi Songcen;Shen Lin;Xia Zhean;Chen Yun;Qian Jun;Li Xinxin(Key Laboratory of Specially Functional Polymeric Materials and Related Technology(Ministry of Education),School of Materials Science and Engineering,East China University of Science and Technology,Shanghai 200237;Shan Xi HJCH Synthetic Rubber Co.,Ltd.,Changzhi 046032)

机构地区：[1]特种功能高分子材料及相关技术教育部重点实验室,材料科学与工程学院,华东理工大学,上海200237 [2]山西霍家长化合成橡胶有限公司,长治046032

出　　处：《化工新型材料》2024年第S02期254-257,共4页New Chemical Materials

基　　金：中央高校基本科研业务费专项资金项目(JKD01231701)。

摘　　要：以甲基丙烯酸甲酯为单体,巯基乙醇作链转移剂,甲基丙烯酰氯封端,制备出不同分子量的乙烯基端基的聚甲基丙烯酸甲酯大单体(MaMMA)。用MaMMA接枝改性氯丁橡胶(CR)制备CR-g-MaMMA。结果表明:CR-g-MaMMA中接枝支链的结构与大单体MaMMA基本一致,引入“支链密度”量化接枝链与主链的关系,性能分析表明支链密度越大粘结性和浸润性越好。Using methyl methacrylate(MMA)as the monomer,mercaptoethanol as the chain transfer agent,and methacryloyl chloride as the end-capper,we prepared vinyl-terminated poly(methyl methacrylate)macromonomers(MaMMA)with different molecular weights.Chloroprene rubber(CR)was graft-modified with MaMMA to prepare CR-g-MaMMA.The results showed that the structure of the grafted branches in CR-g-MaMMA was essentially consistent with the macromonomer MaMMA.We introduced“branching density”to quantify the relationship between the grafted chains and the main chain.Performance analysis indicated that the higher the branching density,the better the adhesion and wetting properties.

关 键 词：甲基丙烯酸甲酯大单体 氯丁橡胶 接枝改性 胶粘剂 

分 类 号：TQ333.5[化学工程—橡胶工业]