TEMPERATURE-DEPENDENCE OF THE MELTING ENTHALPY OF POLY(ETHYLENE-TEREPHTHALATE) AND POLY(ARYL-ETHER-ETHER-KETONE)

被引：21

作者：

SEGUELA, R

机构：

[1] Laboratoire de Structure et Propriétés de l'Etat Solide, URA CNRS 234, Université de Lille I, 59655 Villeneuve d'Ascq Cedex

来源：

POLYMER | 1993年 / 34卷 / 08期

关键词：

POLY(ETHYLENE TEREPHTHALATE); POLY(ARYL-ETHER-ETHER-KETONE); THERMAL BEHAVIOR; MELTING ENTHALPY; HEAT CAPACITY; CRYSTALLINITY;

D O I：

10.1016/0032-3861(93)90338-B

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 temperature dependence of the melting enthalpy has been determined for poly(ethylene terephthalate) and poly(aryl-ether-ether-ketone) from the experimental heat capacity variations with temperature of the solid and the liquid. A significant depression of the transition enthalpy occurs between the thermodynamic equilibrium melting point and the cold-crystallization temperature. The crystal weight fraction measurements, carried out by taking into account this temperature dependency, is in perfect agreement with the density determinations.

引用

页码：1761 / 1764

页数：4

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