Dynamic dilution, constraint-release, and star - Linear blends

S. T. Milner; T. C.B. McLeish; R. N. Young; A. Hakiki; J. M. Johnson

doi:10.1021/ma980481v

Dynamic dilution, constraint-release, and star - Linear blends

S. T. Milner, T. C.B. McLeish, R. N. Young, A. Hakiki, J. M. Johnson

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134 Scopus citations

Abstract

The dynamic dilution theory of stress relaxation, quantitative for star polymer melts, cannot be directly applied to star-linear blends. The linear chains on their reptation time scale τ_d release constraints on the star arms, resulting in constraint-release Rouse motion for the star arms not described by dynamic dilution. We present a microscopic theory without adjustable parameters for stress relaxation in such blends, which is in excellent agreement with dynamic rheology data for the full range of blend fractions.

Original language	English (US)
Pages (from-to)	9345-9353
Number of pages	9
Journal	Macromolecules
Volume	31
Issue number	26
DOIs	https://doi.org/10.1021/ma980481v
State	Published - Dec 29 1998

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/ma980481v

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abstract = "The dynamic dilution theory of stress relaxation, quantitative for star polymer melts, cannot be directly applied to star-linear blends. The linear chains on their reptation time scale τd release constraints on the star arms, resulting in constraint-release Rouse motion for the star arms not described by dynamic dilution. We present a microscopic theory without adjustable parameters for stress relaxation in such blends, which is in excellent agreement with dynamic rheology data for the full range of blend fractions.",

author = "Milner, {S. T.} and McLeish, {T. C.B.} and Young, {R. N.} and A. Hakiki and Johnson, {J. M.}",

year = "1998",

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T1 - Dynamic dilution, constraint-release, and star - Linear blends

AU - Milner, S. T.

AU - McLeish, T. C.B.

AU - Young, R. N.

AU - Hakiki, A.

AU - Johnson, J. M.

PY - 1998/12/29

Y1 - 1998/12/29

N2 - The dynamic dilution theory of stress relaxation, quantitative for star polymer melts, cannot be directly applied to star-linear blends. The linear chains on their reptation time scale τd release constraints on the star arms, resulting in constraint-release Rouse motion for the star arms not described by dynamic dilution. We present a microscopic theory without adjustable parameters for stress relaxation in such blends, which is in excellent agreement with dynamic rheology data for the full range of blend fractions.

AB - The dynamic dilution theory of stress relaxation, quantitative for star polymer melts, cannot be directly applied to star-linear blends. The linear chains on their reptation time scale τd release constraints on the star arms, resulting in constraint-release Rouse motion for the star arms not described by dynamic dilution. We present a microscopic theory without adjustable parameters for stress relaxation in such blends, which is in excellent agreement with dynamic rheology data for the full range of blend fractions.

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JO - Macromolecules

JF - Macromolecules

IS - 26

ER -

Dynamic dilution, constraint-release, and star - Linear blends

Abstract

All Science Journal Classification (ASJC) codes

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