Linear rheology of diluted linear, star and model long chain brached polymer melts

被引：0

作者：

Daniels, D.R. ^{[1
]}

McLeish, T.C.B. ^{[1
]}

Kant, R. ^{[1
]}

Crosby, B.J. ^{[1
]}

Young, R.N. ^{[1
]}

Pryke, A. ^{[1
]}

Allgaier, J. ^{[1
]}

Groves, D.J. ^{[1
]}

Hawkins, R.J. ^{[1
]}

机构：

[1] IRC in Polymer Science and Tech., Department of Physics and Astronomy, University of Leeds, Leeds, LS2 9JT, United Kingdom

来源：

Rheologica Acta | 2001年 / 40卷 / 05期

关键词：

Chains; -; Elasticity;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We present experiments and theory on the diluted melt dynamics of monodisperse entangled polymers of linear, star and H-shaped architecture. Frequency-dependent theological data on a series of progressively diluted linear, star and H-polymers are in good agreement with a refined tube-model theory that, for H-polymers, combines star polymer melt behaviour at high frequency, with linear polymer reptation behaviour at low frequencies. Taking into account the effect of dilution via some simple scaling relations, mild polydispersity and by incorporating the high frequency Rouse modes, we are able to model quantitatively the entire frequency range. This work suggests a novel theological route to analysing long chain branching in polymer melts.

引用

页码：413 / 415