Effect of styrene-butadiene triblock copolymer structure on its compatibilization efficiency in PS/PB and PS/PP blends

被引：24

作者：

Horák, Z ^{[1
]}

Hlavatá, D ^{[1
]}

Fortelny, I ^{[1
]}

Lednicky, F ^{[1
]}

机构：

[1] Acad Sci Czech Republ, Inst Macromol Chem, CR-16206 Prague 6, Czech Republic

来源：

POLYMER ENGINEERING AND SCIENCE | 2002年 / 42卷 / 10期

关键词：

D O I：

10.1002/pen.11095

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Two styrene-butadiene triblock copolymers differing in the length of their styrene blocks (40S-60B-40S and 10S-60B-10S) were used as compatibilizers for PS/PB (4/1) and PS/PP (4/1) blends. The supramolecular structure of the copolymers determined by small-angle X-my scattering (SAXS), morphology of the blends using transmission electron microscopy (TEM), and their tensile impact strength were chosen as criteria of the compatibilization. efficiency of the copolymers used. Different mechanisms of compatibilization. for "symmetrical" system (PS/PB/SBS) and "asymmetrical" system (PS/PP/SBS) were proved. While for the PS/PB blend, the 40S-60B-40S copolymer proved to be a good compatibilizer, for the PS/PP blend, surprisingly, the 10S-60B-10S copolymer is more efficient.

引用

页码：2042 / 2047

页数：6

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