DETERMINATION OF THE KINETIC-PARAMETERS FOR THE POLYMERIZATION OF A POLYURETHANE USING AN IMPROVED METHOD OF DIFFERENTIAL SCANNING CALORIMETRY

被引：17
|
作者：
HERNANDEZSANCHEZ, F
VERAGRAZIANO, R
机构：
[1] NATL AUTONOMOUS UNIV MEXICO,INST INVEST MAT,APDO POSTAL 70-360,DELEGAC COYOACAN,MEXICO CITY 04510,DF,MEXICO
[2] CTR INVEST CIENT YUCATAN,MERIDA,YUCATAN,MEXICO
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 1992年 / 46卷 / 04期
关键词：
D O I：
10.1002/app.1992.070460402
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 kinetic parameters for the polymerization reactions of two polyurethane systems were determined by using an improved method of differential scanning calorymetry (DSC). The calculated activation energy, reaction order, and Arrhenius prefactor show good correlation with the experimental results. The method used here shows several improvements as respects to other DSC methods: the three kinetic parameters can be calculated directly; it is more accurate than other DSC methods; and it requires only one heating rate, during the calorimetric experiments, to determine the activation energy.
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页码：571 / 580
页数：10
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