Structural Rheology of Microphase Separated Diblock Copolymers | Zendy

Ryota Tamate | Zendy; Kohtaro Yamada | Zendy; Jorge Viñals | Zendy; Takao Ohta | Zendy

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Structural Rheology of Microphase Separated Diblock Copolymers

Author(s) -

Ryota Tamate,

Kohtaro Yamada,

Jorge Viñals,

Takao Ohta

Publication year - 2008

Publication title -

journal of the physical society of japan

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.76

H-Index - 139

eISSN - 1347-4073

pISSN - 0031-9015

DOI - 10.1143/jpsj.77.034802

Subject(s) - gyroid , viscoelasticity , materials science , copolymer , rheology , dissipation , relaxation (psychology) , deformation (meteorology) , phase (matter) , elastic energy , thermodynamics , composite material , polymer , physics , psychology , social psychology , quantum mechanics

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.

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