环氧化苯乙烯 - 丁二烯嵌段共聚物的性能研究  

Study on Properties of Epoxidized SBS

作　　者：向福如[1] 马兴明[1] 丁明双 淡宜 陈山玉[1] 

机构地区：[1]四川联合大学高分子材料系

出　　处：《橡胶工业》1998年第6期339-342,共4页China Rubber Industry

摘　　要：用苯乙烯丁二烯嵌段共聚物（ＳＢＳ）的甲苯／环己烷溶液与乙酸和过氧化氢“就地”制造的过乙酸反应的方法制备环氧化ＳＢＳ。考察了环氧基质量分数对环氧化ＳＢＳ性能的影响。结果表明，环氧化ＳＢＳ的环氧基质量分数为０～００６时，其相对分子质量基本不变；拉伸强度、３００％定伸应力、扯断伸长率及扯断永久变形均随环氧基质量分数的增大而略微下降；The expoxidized SBS was prepared by the reaction of the toluene and cyclohexane solution of SBS with the peroxy acetic acid which was made in situ with acetic acid and hydrogen peroxide.The effect of the mass fraction of epoxy groups on the properties of epoxidized SBS was investigated.The results showed that the molecular weight of epoxidized SBS changed little when its mass fraction of epoxy groups was in the range of 0～0.06;the tensile strength,modulus at 300% elongation,elongation at break and permanent set at break decreased slightly and the oil resistance and adhesion strength improved as the mass fraction of epoxy groups increased.

关 键 词：苯乙烯 丁二烯 嵌段共聚物 环氧化 弹性体 改性 

分 类 号：TQ334[化学工程—橡胶工业]