Role of organically modified layered silicate as an active interfacial modifier in immiscible polystyrene/polypropylene blends

被引：391

作者：

Ray, SS

Pouliot, S

Bousmina, M ^{[1
]}

Utracki, LA

机构：

[1] Univ Laval, Dept Chem Engn, CREPEC, Canada Res Chair Polymer Phys & Nanomat, Quebec City, PQ G1K 7P4, Canada

[2] Natl Res Council Canada, Inst Ind Mat, Boucherville, PQ J4B 6Y4, Canada

来源：

POLYMER | 2004年 / 45卷 / 25期

基金：

加拿大自然科学与工程研究理事会;

关键词：

immiscible polymer blends; organically modified layered silicate; compatibilization;

D O I：

10.1016/j.polymer.2004.10.009

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The role of organically modified layered silicate as a compatibilizer for immiscible polystyrene (PS) with polypropylene (PP) or polypropylene grafted with maleic anhydride (PP-g-MA) blends was investigated. Scanning electron micrographs (SEM) revealed efficient mixing of the polymers in the presence of organically modified layered silicate. X-ray diffraction (XRD) patterns and transmission electron microscopic (TEM) observations showed that silicate layers were either intercalated or exfoliated, depending on their interactions with the polymer pair, and were located at the interface between the two polymers. The compatibilizing action of the organically modified layered silicate resulted in a decrease in interfacial tension and particle size and in a remarkable increase in mechanical properties of the modified immiscible blends. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：8403 / 8413

页数：11

共 44 条

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