The nucleation effect of linear polyethylene lamellae over the crystallization of branched polyethylene

被引：12
|
作者：
Puig, CC
机构：
[1] Grupo de Polimeros USB, Depto. de Ciencia de Los Materiales, Universidad Simon Bolívar, Caracas 1080-A
来源：
POLYMER BULLETIN | 1996年 / 36卷 / 03期
关键词：
D O I：
10.1007/BF00319238
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 isothermal crystallization of branched polyethylene (BPE), when it takes place in the presence of linear polyethylene (LPE) lamellae was found to occur above the highest crystallization temperature of the pure BPE. A standard state formed by isothermally crystallized LPE lamellae at 122 degrees C was used to provide surfaces for the crystallizing BPE at various seeding temperatures (117, 118, 119 or 120 degrees C). Isothermal treatments were carried out in a thermostatic oil bath, and evidence on the progress of crystallization of BPE was obtained by differential scanning calorimetry and transmission electron microscopy after quenching from the seeding temperature.
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页码：361 / 367
页数：7
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