NEW VIEW OF ENTANGLEMENTS IN DENSE POLYMER SYSTEMS
NEW VIEW OF ENTANGLEMENTS IN DENSE POLYMER SYSTEMS
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DOI：
10.1103/physrevlett.59.2674
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发表时间：
1987-12-07
影响因子：
8.6
通讯作者：
NOOLANDI, J
中科院分区：
文献类型：
--
作者：
KAVASSALIS, TA;NOOLANDI, J
引入了一个预平均的拓扑参数Ñ，为聚合物熔体中是否存在纠缠提供了判据。该理论预测了从纠缠态到非纠缠态的几何转变，这与实验数据一致。广义Rouse理论被用来描述这两种状态下的聚合物动力学。
A preaveraged topological parameter, N ̃, is introduced to provide a criterion for the presence of entanglements in polymer melts. The theory predicts a geometrical transition from the entangled to the unentangled state in agreement with experimental data. A generalized Rouse theory is used to describe polymer dynamics in both states.