Barford, W. (William) and Ball, Robin. (1987) Towards a complete configurational theory of non-equilibrium polymer adsorption. Journal of the Chemical Society, Faraday Transactions 1, Vol.83 (No.8). pp. 2515-2523. ISSN 0300-9589

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Abstract

A theory of non-equilibrium adsorption is presented in which a polymer profile is built up by the adsorption of incremental concentrations of polymer. Once each increment has been adsorbed, its surface concentration remains constant but the bulk profile can equilibrate, subject to this constraint, as more polymer is adsorbed. This is a more realistic theory of non-equilibrium adsorption than the theory presented by Barford et al. in J. Chem. Soc., Faraday Trans. 1, 1986, 82, 3233, as in that theory no equilibration of the adsorbate was allowed as more polymer was adsorbed. In this paper the free energy of the adsorbate as a function of adsorbate concentration, and hence the saturation concentration, and the polymer profiles at saturation are calculated as a function of a surface interaction term. It is shown that the results are essentially identical to those of Barford et al., leading to the conclusion that the simpler assumptions of Barford et al. were justified.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics Q Science > QD Chemistry
Divisions:	Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	Nonequilibrium statistical mechanics, Polymers -- Absorption and adsorption
Journal or Publication Title:	Journal of the Chemical Society, Faraday Transactions 1
Publisher:	Royal Society of Chemistry
ISSN:	0300-9589
Official Date:	1987
Dates:	Date Event 1987 Published
Volume:	Vol.83
Number:	No.8
Page Range:	pp. 2515-2523
Identification Number:	10.1039/F19878302515
Status:	Peer Reviewed
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/39429

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