苯乙烯-异戊二烯-苯乙烯嵌段共聚物环氧-开环极性化及其性能  

Epoxy-ring-opening polarization and performance of styrene-isoprene-styrene block polymer

作　　者：武晓妹 刘思妮 马红卫 Wu Xiaomei;Liu Sini;Ma Hongwei(School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China;Jiangsu Shengjie Industrial Co.,Ltd.,Nanjing 210000,China)

机构地区：[1]大连理工大学化工学院,辽宁大连116024 [2]江苏圣杰实业有限公司,江苏南京210000

出　　处：《合成树脂及塑料》2022年第3期1-7,共7页China Synthetic Resin and Plastics

基　　金：国家自然科学基金(21674017)。

摘　　要：采用间氯过氧苯甲酸原位环氧化法,以环己烷及四氢呋喃为混合溶剂,对苯乙烯-异戊二烯-苯乙烯嵌段共聚物(SIS)进行了环氧化,制备了一系列不同环氧化程度的环氧化SIS(ESIS)。在此基础上,通过ZrCl_(4)催化开环的方法,得到了羟基化SIS,系统研究了两嵌段(SI)含量、环氧化程度对共聚物表面能、力学性能、T剥离强度的影响。结果表明:系列极性化产物中,ESIS-815-20(SI摩尔分数为53%;环氧化程度实验值为20%)的综合性能优良。适当的SI含量及环氧极性化程度,对其综合性能有利。Styrene-isoprene-styrene(SIS)block copolymer was epoxidized via in-situ epoxidation method of m-chloroperoxybenzoic acid to prepare a series of epoxidized SIS(ESIS)with different epoxidation degrees.On this basis,hydroxylated SIS was obtained through ZrCl_(4) catalytic method of ring-opening to investigate the effects of diblock polymer(SI)content and degree of polarity on surface energy,mechanical properties,T-peel strength of the copolymer.The results show that among the series of polarized products,ESIS-815-20 in which the molar ratio of SI is 53%and epoxidation degree is 20%has excellent comprehensive performance.It is found that appropriate diblock SI content and epoxy polarization degree are beneficial to the performance of ESIS.

关 键 词：苯乙烯-异戊二烯-苯乙烯嵌段共聚物 环氧化 羟基化 性能 

分 类 号：TQ334.3[化学工程—橡胶工业]