摘要
以季戊四醇为"核",与1,2,4-偏苯三酸酐和环氧氯丙烷反应合成超支化聚合物,并通过马来酸酐进行端基改性,合成了以羟基和/或羧基为末端基的水溶性超支化聚合物(HBPs),通过FT-IR1、H-NMR对结构进行了表征。然后将该超支化聚合物(HBPs)应用于BA/VAc/AA丙烯酸共聚物压敏胶粘剂(PSAs)乳液中。发现超支化聚合物的加入提高了胶粘剂的稳定性和粘接性能。以羧基为末端基的超支化聚合物(HBP-B)加入量为0.5%时,胶粘剂互相矛盾的两个性能——持粘力与剥离强度同时达到最大值。
A series of hyperbranched polymers （HBPs） were synthesized and measured by FT-IR and ^1 H-NIVIR. Two types of HBPs with - COOH and - COOH/- OH as end-groups were used to modify the performance of BA/ VAc/AA emulsion-based pressure-sensitive adhesives （PSAs）. The influences of the HBPs on the properties of PSAs were discussed. It is found that both the stability and the adhesive properties of PSAs are improved by HBPs. Further more, 0.5 % HBP as the modifier with - COOH as end groups increase shear strength and peel strength to the maximum, which are two conflicting properties of emulsion-based PSAs.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2009年第4期36-39,共4页
Polymer Materials Science & Engineering
基金
东华大学生态纺织教育部重点实验室资助课题
上海市重点学科第三期资助课题(S30109)
关键词
超支化聚合物
丙烯酸乳液
压敏胶粘剂
合成
应用
hyperbranched polymer
acrylic emulsion
pressure-sensitive adhesives
synthesis
application
