Parameter-free theory for stress relaxation in star polymer melts

S. T. Milner; T. C.B. McLeish

doi:10.1021/ma961559f

Parameter-free theory for stress relaxation in star polymer melts

S. T. Milner, T. C.B. McLeish

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Abstract

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″(ω) compare well with experimental data, with excellent agreement in shape and within a factor of 2 in time and modulus scales.

Original language	English (US)
Pages (from-to)	2159-2166
Number of pages	8
Journal	Macromolecules
Volume	30
Issue number	7
DOIs	https://doi.org/10.1021/ma961559f
State	Published - Apr 7 1997

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/ma961559f

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title = "Parameter-free theory for stress relaxation in star polymer melts",

abstract = "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″(ω) compare well with experimental data, with excellent agreement in shape and within a factor of 2 in time and modulus scales.",

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N2 - 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″(ω) compare well with experimental data, with excellent agreement in shape and within a factor of 2 in time and modulus scales.

AB - 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″(ω) compare well with experimental data, with excellent agreement in shape and within a factor of 2 in time and modulus scales.

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JF - Macromolecules

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Parameter-free theory for stress relaxation in star polymer melts

Abstract

All Science Journal Classification (ASJC) codes

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