Concentration fluctuation effects on disorder-order transitions in block copolymer melts

A. M. Mayes; M Olvera de la Cruz

doi:10.1063/1.461736

Concentration fluctuation effects on disorder-order transitions in block copolymer melts

A. M. Mayes^*, M Olvera de la Cruz

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

125 Scopus citations

Abstract

We study transitions to periodic structures in block copolymers melts, including concentration fluctuations self-consistently in the analysis. Phase diagrams are constructed for diblock and triblock copolymers of finite molecular weight. The concentration fluctuations increase the stability of the isotropic state, and induce a shift in k ^*, the wave vector of maximum scattered intensity, to lower values as the transition is approached. We calculate the shift in k ^* near the transition, and obtain the anisotropic scattering function in the ordered state.

Original language	English (US)
Pages (from-to)	4670-4677
Number of pages	8
Journal	The Journal of Chemical Physics
Volume	95
Issue number	6
DOIs	https://doi.org/10.1063/1.461736
State	Published - Jan 1 1991

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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