环氧SBS开环制备顺酐化离聚体及其物化性能的研究  

Preparation characterization and properties of SBS ionomers via ring-opening reaction of epoxidized SBS with potassium hydrogen maleate

作　　者：喻武钢[1] 谢洪泉[2] 

机构地区：[1]湖北省化学研究院,湖北武汉430074 [2]华中科技大学化学系,湖北武汉430074

出　　处：《弹性体》2006年第3期32-36,共5页China Elastomerics

摘　　要：利用环氧化苯乙烯-丁二烯-苯乙烯嵌段共聚物(ESBS)的环氧基与顺丁烯二酸氢钾(HKM)在相转移催化剂和开环催化剂存在的条件下开环反应制得钾离聚体。研究了其反应条件,由于添加了助剂BM,环氧基开环率达到了95.2%,并用FTIR确定了离聚体的生成;通过对不同环氧值ESBS开环反应,研究了不同离子基团质量摩尔浓度对离聚体物化性能的影响。Epoxidized styrene-butadiene-styrene triblock copolymer（ESBS） can react with potassium hydrogen maleate by ring-opening reaction in the presence of phase transfer catalyst and ring-opening catalyst. Epoxy conversion reached to 95.2 % in the existence of a basic accelerator. The purified product was characterized by FTIR spectrum. Emulsifying properties,water and oil absorbency as well as dilute solution viscosity were studied.

关 键 词：离聚体 环氧化SBS 顺酐化 开环反应 热塑性弹性体 

分 类 号：TQ334.9[化学工程—橡胶工业]