Effects of component viscosities on flow-induced alignment of lamellae of diblock copolymers

Research output: Contribution to conferencePaper

Abstract

Flow-induced alignment of two lamellar forming diblock copolymers, one with components having different viscosities and another having almost the same viscosities are compared based on the interaction parameters, (χN) eff, of the components. It is concluded that the degree of perpendicular alignment (ratio of sector averaged intensities) is primarily determined by (χN)eff and reduced shear rates. In addition, concentration and shear rate regions in which parallel alignment coexists become narrower for the diblock copolymers consist of components with almost the same viscosities.

Original languageEnglish
Pages3976-3977
Number of pages2
Publication statusPublished - Dec 1 2005
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: Sep 20 2005Sep 22 2005

Other

Other54th SPSJ Symposium on Macromolecules
CountryJapan
CityYamagata
Period9/20/059/22/05

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All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Takahashi, Y. (2005). Effects of component viscosities on flow-induced alignment of lamellae of diblock copolymers. 3976-3977. Paper presented at 54th SPSJ Symposium on Macromolecules, Yamagata, Japan.