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

Yanwei Wang; Xin Shu; Jiaping Liu; Qianping Ran

doi:10.1039/c8sm00013a

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

Yanwei Wang, Xin Shu, Jiaping Liu, Qianping Ran

Department of Chemical and Materials Engineering

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

5 Citations (Scopus)

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.

Original language	English
Pages (from-to)	2077-2083
Number of pages	7
Journal	Soft Matter
Volume	14
Issue number	11
DOIs	https://doi.org/10.1039/c8sm00013a
Publication status	Published - Jan 1 2018

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics

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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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AU - Shu, Xin

AU - Liu, Jiaping

AU - Ran, Qianping

N1 - Funding Information: This work was supported by the National Key Research and Development Program of China (2017YFB0310100), and the State Key Laboratory of High Performance Civil Engineering Materials (2014CEM001). The current article also benefited from the comments of the anonymous reviewers. Publisher Copyright: © 2018 The Royal Society of Chemistry. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - 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.

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

Abstract

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