THERMAL-STABILITY OF INSITU FILLED SILOXANE ELASTOMERS

被引：37

作者：

SOHONI, GB

MARK, JE

机构：

[1] UNIV CINCINNATI,DEPT CHEM,CINCINNATI,OH 45221

[2] UNIV CINCINNATI,POLYMER RES CTR,CINCINNATI,OH 45221

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1992年 / 45卷 / 10期

关键词：

D O I：

10.1002/app.1992.070451010

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly (dimethylsiloxane) elastomers that had been filled with in situ precipitated silica were studied by thermogravimetric analysis, under nitrogen and in air. Both types of measurements indicated that the filler raises the temperature of thermooxidative degradation of the polymer, possibly by inactivating the terminal --OH groups on the chains. Commercial fume silica was found to cause more severe degradation problems than did the in situ precipitated silica. In all cases, the degradation was more pronounced in air than in the inert atmosphere provided by nitrogen.

引用

页码：1763 / 1775

页数：13

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