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

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• 作者：Simanke ; Adriane G. ; Galland ; Griselda B. ; Freitas ; Liane ; da Jornada ; Joã ; o Alziro H. ; et. al.
• 关键词：Ethylene/1-octene copolymers ; Dynamic-mechanical behaviour ; Interfacial content
• 刊名：Polymer
• 出版年：1999
• 出版时间：September, 1999
• 年：1999
• 卷：40
• 期：20
• 页码：5489-5495
• 全文大小：219 K

文摘

Studies of ethylene/1-octene copolymers prepared by a metallocene catalyst were carried out 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 b2;-transition increases as the comonomer content increases and decreases crystallinity.