湖南大学学报(自然科学版)2011,Vol.38Issue(1):63-66,4.
端甲酰基丙烯酸聚苯乙烯大分子单体的合成与表征
Syntheses and Characterization of Formoxyl Acrylic Terminated Polystyrene Macromonomers
摘要
Abstract
Polymers bearing a single formoxyl acrylic group at the chain end were synthesized by reacting between poly(styryl)lithium and maleic anhydride(MAH). The functionalized polymer was characterized by GPC, IR and Raman. The end-capping mechanism was figured, including the possible coupling reaction of dimmer. According to kinetic study, the reaction behavior could be explained by SN2 mechanism.Specifically, various factors related to functionalized efficiency, such as temperature, time of end-capping reaction, MAH/PSLi molar ratio (CMAH/ CPSLi) etc. , were investigated. The result has shown that the reaction efficiency was obviously affected by reaction time and polar addition. The functionalized efficiency at the optimism conditions can be up to 83.3%.关键词
阴离子聚合/大分子单体/甲酰基丙烯酸/封端反应Key words
anionic polymerization/ macromonomers/ formoxyl crylic acid/ end-capping reaction分类
化学化工引用本文复制引用
徐伟箭,戴海燕,吴国梁,熊远钦,刘坤..端甲酰基丙烯酸聚苯乙烯大分子单体的合成与表征[J].湖南大学学报(自然科学版),2011,38(1):63-66,4.基金项目
国家自然科学基金资助项目(J0830415) (J0830415)