热容
结晶度
焓
战术性
热力学
高分子
化学
吉布斯自由能
聚丙烯
无定形固体
熵(时间箭头)
比热
封面(代数)
高分子科学
物理化学
高分子化学
聚合物
有机化学
结晶学
物理
生物化学
机械工程
工程类
聚合
作者
Umesh Gaur,Bernhard Wunderlich
摘要
The heat capacity of polypropylene from 0 K to 600 K is reviewed on the basis of measurements on 20 samples reported in the literature. The crystallinity dependence is critically evaluated and a set of recommended data for completely crystalline and amorphous polypropylene are derived. The effect of tacticity on the heat capacity is also evaluated. Entropy, enthalpy, and Gibbs energy functions are calculated. This paper is the fourth in a series of publications which will ultimately cover all heat capacity measurements on linear macromolecules.
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