Effects of shear-induced phase separation on steady state viscoelastic properties

Mikihito Takenaka; Maya K. Endoh; Tadashi Inoue; Hiroshi Watanabe; Takashi Taniguchi; Takeji Hashimoto

Effects of shear-induced phase separation on steady state viscoelastic properties

Mikihito Takenaka
, Maya K. Endoh
, Tadashi Inoue
, Hiroshi Watanabe
, Takashi Taniguchi
, Takeji Hashimoto

Materials Science and Engineering

Kyoto University
Yamagata University

Research output: Contribution to conference › Paper › peer-review

Abstract

We aimed to elucidate the effect of shear-enhanced concentration fluctuations and/or shear-induced structure formation under simple shear flow on the steady-state viscoelastic properties of the entangled polymer solutions. In order to compare the viscoelastic behaviors having shear-induced concentration fluctuations and/or phase separation and those of homogeneous state in steady state, we calculated the shear stress and the normal stress differences by using K-BKZ type constitutive equation as those in homogeneous state. We found that the contribution of shear-enhanced concentration fluctuations is surprisingly small though the amplitude of the concentration fluctuations in the solution is large.

Original language	English
Pages	783
Number of pages	1
State	Published - 2005
Event	54th SPSJ Annual Meeting 2005 - Yokohama, Japan Duration: May 25 2005 → May 27 2005

Conference

Conference	54th SPSJ Annual Meeting 2005
Country/Territory	Japan
City	Yokohama
Period	05/25/05 → 05/27/05

Keywords

Semi-dilute polymer solutions
Shear-induced phase separation
Viscoelastic effects

Cite this

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title = "Effects of shear-induced phase separation on steady state viscoelastic properties",

abstract = "We aimed to elucidate the effect of shear-enhanced concentration fluctuations and/or shear-induced structure formation under simple shear flow on the steady-state viscoelastic properties of the entangled polymer solutions. In order to compare the viscoelastic behaviors having shear-induced concentration fluctuations and/or phase separation and those of homogeneous state in steady state, we calculated the shear stress and the normal stress differences by using K-BKZ type constitutive equation as those in homogeneous state. We found that the contribution of shear-enhanced concentration fluctuations is surprisingly small though the amplitude of the concentration fluctuations in the solution is large.",

keywords = "Semi-dilute polymer solutions, Shear-induced phase separation, Viscoelastic effects",

author = "Mikihito Takenaka and Endoh, \{Maya K.\} and Tadashi Inoue and Hiroshi Watanabe and Takashi Taniguchi and Takeji Hashimoto",

year = "2005",

language = "English",

pages = "783",

note = "54th SPSJ Annual Meeting 2005 ; Conference date: 25-05-2005 Through 27-05-2005",

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TY - CONF

T1 - Effects of shear-induced phase separation on steady state viscoelastic properties

AU - Takenaka, Mikihito

AU - Endoh, Maya K.

AU - Inoue, Tadashi

AU - Watanabe, Hiroshi

AU - Taniguchi, Takashi

AU - Hashimoto, Takeji

PY - 2005

Y1 - 2005

N2 - We aimed to elucidate the effect of shear-enhanced concentration fluctuations and/or shear-induced structure formation under simple shear flow on the steady-state viscoelastic properties of the entangled polymer solutions. In order to compare the viscoelastic behaviors having shear-induced concentration fluctuations and/or phase separation and those of homogeneous state in steady state, we calculated the shear stress and the normal stress differences by using K-BKZ type constitutive equation as those in homogeneous state. We found that the contribution of shear-enhanced concentration fluctuations is surprisingly small though the amplitude of the concentration fluctuations in the solution is large.

AB - We aimed to elucidate the effect of shear-enhanced concentration fluctuations and/or shear-induced structure formation under simple shear flow on the steady-state viscoelastic properties of the entangled polymer solutions. In order to compare the viscoelastic behaviors having shear-induced concentration fluctuations and/or phase separation and those of homogeneous state in steady state, we calculated the shear stress and the normal stress differences by using K-BKZ type constitutive equation as those in homogeneous state. We found that the contribution of shear-enhanced concentration fluctuations is surprisingly small though the amplitude of the concentration fluctuations in the solution is large.

KW - Semi-dilute polymer solutions

KW - Shear-induced phase separation

KW - Viscoelastic effects

UR - https://www.scopus.com/pages/publications/33645576294

M3 - Paper

AN - SCOPUS:33645576294

SP - 783

T2 - 54th SPSJ Annual Meeting 2005

Y2 - 25 May 2005 through 27 May 2005

ER -

Effects of shear-induced phase separation on steady state viscoelastic properties

Abstract

Conference

Keywords

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