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Degradation kinetics of poly(ethylene terephthalate) and poly (methyl methacrylate) blends
被引：0
作者：
Adam Al-Mulla
Habib I. Shaban
机构：
[1] Kuwait University,Chemical Engineering Department
来源：
Polymer Bulletin
|
2007年
/
58卷
关键词：
PMMA;
Methyl Methacrylate;
Degradation Kinetic;
Ethylene Terephthalate;
Vinyl Ester;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Poly(ethylene terephthalate) PET and poly(methyl methacrylate) PMMA blends were made by melt mixing in a batch reactor. Three different weight ratios of PET : PMMA (25:75, 50:50 and 75:25) were chosen to study the effect of blend composition on the degradation kinetics. A relationship between the fractional volatiles evolved per unit time and the fraction of polymer degraded is established. The kinetic parameters for degradation were found using modified Avrami’s non-isothermal equation. Parameters like degradation rate constant (k) and order of degradation (n), were evaluated for the virgin polymers and the blends.
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页码：893 / 902
页数：9
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