Kinetics of the thermal and thermo-oxidative degradation of a polystyrene-clay nanocomposite

被引：130
|
作者：
Vyazovkin, S
Dranca, I
Fan, XW
Advincula, R
机构：
[1] Univ Alabama Birmingham, Dept Chem, Birmingham, AL 35294 USA
[2] Univ Houston, Dept Chem, Houston, TX 77204 USA
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2004年 / 25卷 / 03期
关键词：
degradation; fire resistance; nanocomposites; thermogravimetric analysis (TGA);
D O I：
10.1002/marc.200300214
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Thermogravimetry and differential scanning calorimetry have been used to study the thermal and thermo-oxidative degradation of polystyrene (PS) and a PS-clay nanocomposite. An advanced isoconversional method has been applied for kinetic analysis. Introduction of the clay phase increases the activation energy and affects the total heat of degradation, which suggests a change in the reaction mechanism. The obtained kinetic data permit a comparative assessment of the fire resistance of the studied materials.
引用
收藏
页码：498 / 503
页数：6
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