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Title: Soft core fluid in a quenched matrix of soft core particles: a mobile mixture in a model gel
Authors: Archer, Andrew J.
Schmidt, Matthias
Evans, Robert
Issue Date: 2006
Publisher: © The American Physical Society
Citation: ARCHER, A.J., SCHMIDT, M. and EVANS, R., 2006. Soft core fluid in a quenched matrix of soft core particles: a mobile mixture in a model gel. Physical Review E, 73 (1), 011506.
Abstract: We present a density-functional study of a binary phase-separating mixture of soft core particles immersed in a random matrix of quenched soft core particles of larger size. This is a model for a binary polymer mixture immersed in a cross-linked rigid polymer network. Using the replica "trick" for quenched-annealed mixtures we derive an explicit density functional theory that treats the quenched species on the level of its one-body density distribution. The relation to a set of effective external potentials acting on the annealed components is discussed. We relate matrix-induced condensation in bulk to the behavior of the mixture around a single large particle. The interfacial properties of the binary mixture at a surface of the quenched matrix display a rich interplay between capillary condensation inside the bulk matrix and wetting phenomena at the matrix surface. © 2006 The American Physical Society.
Description: This article was published in the journal, Physical Review E [© The American Physical Society].
Sponsor: A.J.A. acknowledges the support of EPSRC under Grant No. GR/S28631/01. M.S. acknowledges the support of the SFB TR6 ‘‘Colloidal dispersions in external fields’’ of the DFG.
Version: Published
DOI: 10.1103/PhysRevE.73.011506
URI: https://dspace.lboro.ac.uk/2134/16038
Publisher Link: http://dx.doi.org/10.1103/PhysRevE.73.011506
ISSN: 1539-3755
Appears in Collections:Published Articles (Maths)

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