Microphase separation in polydisperse miktoarm star copolymers

M.A. Aliev and N.Yu. Kuzminyh

Physica A: Statistical Mechanics and its Applications, 2011, vol. 390, issue 20, 3245-3261

Abstract: A two or more chemically different homopolymers attached to a single junction point form a macromolecule of miktoarm star copolymer. The model of such copolymer composed of an arbitrary number of types of homopolymer arms is considered. The lengths distributions of arms are assumed to be arbitrary, provided that average length of an each arm is long enough. The algorithm is suggested to find the contributions into the Landau free energy of this copolymer melt which are necessary to obtain a phase diagram in weak segregation regime. Using this algorithm the contributions are found up to the fourth order. The phase diagrams have been constructed for the simple model of AB2 copolymer melt whose macromolecules consist of polydisperse A-block and two monodisperse B-blocks.

Keywords: Microphase separation; Copolymers; Phase transitions (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:390:y:2011:i:20:p:3245-3261

DOI: 10.1016/j.physa.2011.05.013

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