RELATION OF INTERNAL ROTATIONAL-ISOMERISM BARRIERS TO THE FLOW ACTIVATION-ENERGY OF ENTANGLED POLYMER MELTS IN THE HIGH-TEMPERATURE ARRHENIUS REGION

被引:80
作者
NGAI, KL [1 ]
PLAZEK, DJ [1 ]
机构
[1] UNIV PITTSBURGH, DEPT MET & MAT ENGN, PITTSBURGH, PA 15213 USA
关键词
Polybutadienes; -; Viscoelasticity;
D O I
10.1002/pol.1985.180231012
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A strong correlation between internal rotational isomerism barriers and the flow activation energy of entangled polymer melts in the high-temperature Arrhenius region is observed. This correlation is predicted by a coupling model but is not expected by any other model that we are aware of.
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页码:2159 / 2180
页数:22
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