Parameter-free theory for stress relaxation in star polymer melts

被引：379

作者：

Milner, ST ^{[1
]}

McLeish, TCB ^{[1
]}

机构：

[1] UNIV LEEDS,DEPT PHYS,LEEDS LS2 9JT,W YORKSHIRE,ENGLAND

来源：

MACROMOLECULES | 1997年 / 30卷 / 07期

关键词：

D O I：

10.1021/ma961559f

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We present a theory of stress relaxation in star polymer melts with no adjustable parameters beyond those measurable in linear melts. We incorporate the effect of higher Rouse modes on star arm retraction and the Colby-Rubinstein scaling of entanglement length within ''dynamic dilution''. Our results for G ''(omega) compare well with experimental data, with excellent agreement in shape and within a factor of 2 in time and modulus scales.

引用

页码：2159 / 2166

页数：8

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