COMPARISON OF THE THERMAL AND MECHANICAL DEGRADATION OF GLASSY POLYSTYRENE BY FOURIER-TRANSFORM INFRARED SPECTROSCOPY

被引：14

作者：

DESPOSITO, L

KOENIG, JL

机构：

[1] Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio

来源：

POLYMER ENGINEERING AND SCIENCE | 1979年 / 19卷 / 02期

关键词：

D O I：

10.1002/pen.760190220

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The thermal and mechanical degradation of glassy polystyrene has been studied by Fourier Transform Infrared, FT‐IR, spectroscopy. Using difference spectroscopy we have found that the products formed from these two modes of degradation were significantly different. This result is in contrast with other workers who found similar products for the thermal and mechanical degradation of polystyrene by mass spectroscopy. Our result suggests a reassessment of the thermal activation mechanism for mechanically‐induced bond scission. We have also found that the distribution of oxidation products appears to depend upon the environment in which the polymer is mechanically degraded. Finally, we have demonstrated the utility of FT‐IR spectroscopy for studying the mechanical degradation of polymers. Copyright © 1979 Society of Plastics Engineers, Inc.

引用

页码：162 / 165

页数：4

共 14 条

[1]

Amelin A. V., 1967, Polymer Mechanics, V3, P54, DOI 10.1007/BF00859275

[2] FREE-RADICAL FORMATION IN UNIAXIALLY STRESSED NYLON [J].