Effect of the brush structure on the degradation mechanism of polystyrene-clay nanocomposites

被引：48

作者：

Chen, K

Susner, MA

Vyazovkin, S ^{[1
]}

机构：

[1] Univ Alabama Birmingham, Dept Chem, Birmingham, AL 35294 USA

[2] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2005年 / 26卷 / 09期

关键词：

clay; degradation; FT-IR; mass spectrometry; nanocomposites;

D O I：

10.1002/marc.200500043

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Pyrolysis-GC-MS and TGA-FT-IR methods have been used to perform a comparative degradation study of polystyrene and a polystyrene-clay composite. An abnormally high yield of a-methylstyrene has been detected for the composite. This and other differences in degradation products have been explained by enhanced intermolecular interaction of the grafted PS chains, forming, a brush structure. A conceptual model of the process has been suggested.

引用

页码：690 / 695

页数：6

共 47 条

[1] POLYMER ADSORPTION ON SMALL SPHERES - SCALING APPROACH [J].