The crystallization kinetics of monodisperse C98H198 from the melt

被引：23

作者：

Teckoe, J ^{[1
]}

Bassett, DC ^{[1
]}

机构：

[1] Univ Reading, JJ Thomson Phys Lab, Reading RG6 6AF, Berks, England

来源：

POLYMER | 2000年 / 41卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

crystallization kinetics; monodisperse n-alkanes; extended-chains;

D O I：

10.1016/S0032-3861(99)00467-X

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 crystallization kinetics of the monodisperse n-alkane C98H198, growing as extended-chain lamellae from the melt, have been measured as part of a wider programme on these novel model systems for polymeric materials. Crystal growth rates decrease linearly, by a factor of 30, over the temperature range of 113.5-114.9 degrees C, an interval which encompasses a significant change in habit from individual through parallel-stacked lamellae to a type of coarse spherulite. The data differ considerably in character from those reported previously for extended chain crystallization of n-C198H398 but are comparable to earlier studies of purified n-C94H190 and are sensibly linear with supercooling as proposed in Hoffman's theory of extended-chain crystallization. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1953 / 1957

页数：5