Highly entangled polymer primitive chain network simulations based on dynamic tube dilation.
Highly entangled polymer primitive chain network simulations based on dynamic tube dilation.
复制标题
基于动态管膨胀的高度缠结聚合物原链网络模拟。
DOI：
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发表时间：
2004
影响因子：
4.4
通讯作者：
G. Marrucci
中科院分区：
文献类型：
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作者：
T. Yaoita;T. Isaki;Yuichi Masubuchi;H. Watanabe;G. Ianniruberto;F. Greco;G. Marrucci
本文利用动态扩管（DTD）的概念，提出了一种新的模拟方案，以获得具有大量缠结的长链的线性粘弹性响应。新方案是基于一些作者以前提出的原始链网络模型，并成功地用于模拟适度缠结聚合物的线性和非线性行为。标度律是由DTD概念产生的，并且允许在对较短链进行适当模拟的基础上预测非常长链的线性响应，而不引入可调参数。对线性单分散聚异戊二烯和聚苯乙烯的现有数据的方法的测试显示出良好的定量一致性。
The concept of dynamic tube dilation (DTD) is here used to formulate a new simulation scheme to obtain the linear viscoelastic response of long chains with a large number of entanglements. The new scheme is based on the primitive chain network model previously proposed by some of the authors, and successfully employed to simulate linear and nonlinear behavior of moderately entangled polymers. Scaling laws are generated by the DTD concept, and allow for prediction of the linear response of very long chains on the basis of suitable simulations performed on shorter ones, without introducing adjustable parameters. Tests of the method against existing data for linear monodisperse polyisoprene and polystyrene show good quantitative agreement.