Carboxylic acid assisted oxidation of polypropylene studied by chemiluminescence

被引：36

作者：

Broska, R ^{[1
]}

Rychly, J ^{[1
]}

Csomorová, K ^{[1
]}

机构：

[1] Slovak Acad Sci, Inst Polymer, Bratislava 84236, Slovakia

来源：

POLYMER DEGRADATION AND STABILITY | 1999年 / 63卷 / 02期

关键词：

D O I：

10.1016/S0141-3910(98)00097-4

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 acceleration effect of stearic acid on oxidation of polypropylene (PP) has been examined by chemiluminescence (CL). The presence of acid in PP shortens the induction period of CL increase. The effect becomes more pronounced with increasing temperature. The CL curves of oxidation were analyzed in terms of heterogeneous kinetics considering stearic acid-hydroperoxide interaction as an elementary initiating reaction of PP oxidation. A nonlinear Arrhenius plot of experimental induction period of oxidation of PP has been observed in the presence of stearic acid. It was accounted for as an inherent feature of heterogeneous oxidation kinetics. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：231 / 236

页数：6

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