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Conformational properties and entropic barrier in the ``head-on'' adsorption of a single polymer chain towards a flat surface

Abstract

This work investigates the change in conformations and the entropic free energy barrier in the ``head-on'' adsorption process of a flexible polymer chain towards a flat surface in the framework of the Gaussian chain model. Analytical expressions are reported for the distribution of chain end, the mean square end-to-end distance, the entropic free energy barrier and the adsorption equilibrium constant at low surface coverage (the ``mushroom'' regime). Theoretical results are discussed in the context of polyoxyethylene-phosphonate-type polymer dispersants, possessing a non-adsorbing polyoxyethylene chain and an adsorbing head-group.

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Publication details

The article was received on 02 Jan 2018, accepted on 12 Feb 2018 and first published on 12 Feb 2018


Article type: Paper
DOI: 10.1039/C8SM00013A
Citation: Soft Matter, 2018, Accepted Manuscript
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    Conformational properties and entropic barrier in the ``head-on'' adsorption of a single polymer chain towards a flat surface

    Y. Wang, X. Shu, J. Liu and Q. Ran, Soft Matter, 2018, Accepted Manuscript , DOI: 10.1039/C8SM00013A

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