Influence of the comonomer content on the thermal and dynamic mechanical properties of metallocene ethylene/1-octene copolymers

被引：109

作者：

Simanke, AG

Galland, GB

Freitas, L

da Jornada, JAH

Quijada, R

Mauler, RS

机构：

[1] Univ Fed Rio Grande Sul, Inst Quim, BR-91501970 Porto Alegre, RS, Brazil

[2] Univ Fed Rio Grande Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil

[3] Univ Chile, Fac Ciencias Fis & Matemat, Dept Ingn Quim, Santiago, Chile

来源：

POLYMER | 1999年 / 40卷 / 20期

关键词：

ethylene/1-octene copolymers; dynamic-mechanical behaviour; interfacial content;

D O I：

10.1016/S0032-3861(98)00771-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：

Studies of ethylene/1-octene copolymers prepared by a metallocene catalyst were carried our through dynamic-mechanical experiments (DMTA), differential scanning calorimetry (DSC), Raman spectroscopy and gel permeation chromatography (GPC). The influence of comonomer content on the ethylene/1-octene properties, specially those related to the dynamic-mechanical behaviour were studied. It was observed that the intensity of the beta-transition increases as the comonomer content increases and decreases crystallinity, (C) 1999 Elsevier Science Ltd. All rights reserved.

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页码：5489 / 5495

页数：7

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