Structural rheology of microphase separated diblock copolymers

Ryota Tamate; Kohtaro Yamada; Jorge Viñals; Takao Ohta

doi:10.1143/JPSJ.77.034802

Structural rheology of microphase separated diblock copolymers

Ryota Tamate, Kohtaro Yamada, Jorge Viñals, Takao Ohta

Physics and Astronomy (Twin Cities)

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14 Scopus citations

Abstract

We formulate a viscoelastic theory for interconnected microphase separated structures such as a double gyroid in diblock copolymer melts. We consider the energy increase and the energy dissipation due to the deformation of interconnected periodic domains. The dominant elastic part agrees with previous analytical results obtained by a phase formulation of deformations. It is shown that a viscous response also appears which is mainly due to two relaxation modes of the gyroid.

Original language	English (US)
Article number	034802
Journal	Journal of the Physical Society of Japan
Volume	77
Issue number	3
DOIs	https://doi.org/10.1143/JPSJ.77.034802
State	Published - Mar 2008

Keywords

Diblock copolymer
Double gyroid
Mode expansion
Rheology

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AU - Tamate, Ryota

AU - Yamada, Kohtaro

AU - Viñals, Jorge

AU - Ohta, Takao

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KW - Diblock copolymer

KW - Double gyroid

KW - Mode expansion

KW - Rheology

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Structural rheology of microphase separated diblock copolymers

Abstract

Keywords

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