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

Research output: Contribution to journalArticlepeer-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 languageEnglish
Pages (from-to)2077-2083
Number of pages7
JournalSoft Matter
Volume14
Issue number11
DOIs
Publication statusPublished - Jan 1 2018

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics

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