THERMAL-DEGRADATION OF SATURATED POLY(METHYL METHACRYLATE)

被引：139

作者：

MANRING, LE

机构：

[1] DuPont, Wilmington, DE, USA, DuPont, Wilmington, DE, USA

来源：

MACROMOLECULES | 1988年 / 21卷 / 02期

关键词：

PLASTICS - Molecular Weight - POLYMERS - Degradation;

D O I：

10.1021/ma00180a046

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 author has determined the Arrhenius activation parameters for degradation of saturated PMMA. We believe this is the first accurate determination of these parameters for PMMA. By studying the degradation of low molecular weight PMMA (so that zip VM GT TH DP) that is completely saturated and has a narrow polydispersity, we have determined accurate Arrhenius parameters for random chain scission in PMMA. Experimental evidence shows that the process occurs with an Arrhenius preexponential factor of approx. 2 multiplied by 10**1**6 s** minus **1.

引用

页码：528 / 530

页数：3

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