由端双键聚乙烯合成端羟基聚乙烯的不同路径  

Diverse routes for converting vinyl-terminated polyethylene into hydroxyl terminated polyethylene

作　　者：张勇杰[1] 李倩[2] 王书唯[1] 曲敏杰[1] 李化毅[2] 

机构地区：[1]大连工业大学纺织与材料工程学院,辽宁大连116046 [2]中国科学院化学研究所工程塑料院重点实验室北京分子科学国家实验室,北京100190

出　　处：《石油化工》2017年第6期685-690,共6页Petrochemical Technology

基　　金：辽宁省博士科研启动基金指导计划项目;国家自然科学青年基金项目(51403216)

摘　　要：以端双键聚乙烯为原料,经硼氢化-氧化反应得到了单羟基封端聚乙烯、经巯基-烯点击化学反应得到了含硫单羟基封端聚乙烯、含硫双羟基封端聚乙烯;以环氧基团封端聚乙烯为原料,与不同的亲核试剂经环氧-开环反应得到了端仲羟基聚乙烯、1,2-邻位双羟基聚乙烯、非邻位双羟基封端聚乙烯及三羟基封端聚乙烯。利用1H NMR,GPC,DSC方法研究了产物的结构、相对分子质量及其分布以及结晶性能。实验结果表明,端双键聚乙烯是制备端羟基聚乙烯的理想原料,利用多种反应途径可高效制备出具有明确结构的端羟基聚乙烯。With vinyl-terminated polyethylene（v-PE） as starting material,mono-hydroxylterminated polyethylene was synthesized via hydroboration-oxidation reaction and sulfur-containing mono-hydroxyl and di-hydroxyl terminated polyethylene were synthesized via thiol-ene click reaction. 2-hydroxyl-,adjacent 1,2-diol-,unadjacentdiol-and triol-terminated polyethylene were synthesized via ring-opening reaction of epoxide-terminated polyethylene towards different nucleophilic reagents. The chemical structures,molecule weight,polydispersity index and crystallization properties of resulted polymers were studied by 1H NMR,GPC,and DSC,respectively. The results illustrate that v-PE with both high selectivity and high reactivity is the ideal starting material to efficiently prepare h-PE with defined structure via different routes.

关 键 词：端羟基聚乙烯 端双键聚乙烯 双键羟基化反应 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业]