Phase transitions in solvent-dependent polymer adsorption in three dimensions

C. J. Bradly, A. L. Owczarek, and T. Prellberg
Phys. Rev. E 99, 062113 – Published 13 June 2019

Abstract

We consider the phase diagram of self-avoiding walks (SAWs) on the simple cubic lattice subject to surface and bulk interactions, modeling an adsorbing surface and variable solvent quality for a polymer in dilute solution, respectively. We simulate SAWs at specific interaction strengths to focus on locating certain transitions and their critical behavior. By collating these new results with previous results we sketch the complete phase diagram and show how the adsorption transition is affected by changing the bulk interaction strength. This expands on recent work considering how adsorption is affected by solvent quality. We demonstrate that changes in the adsorption crossover exponent coincide with phase boundaries.

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  • Received 11 March 2019

DOI:https://doi.org/10.1103/PhysRevE.99.062113

©2019 American Physical Society

Physics Subject Headings (PhySH)

Statistical Physics & ThermodynamicsPolymers & Soft Matter

Authors & Affiliations

C. J. Bradly* and A. L. Owczarek

  • School of Mathematics and Statistics, University of Melbourne, Victoria 3010, Australia

T. Prellberg

  • School of Mathematical Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, United Kingdom

  • *chris.bradly@unimelb.edu.au
  • owczarek@unimelb.edu.au
  • t.prellberg@qmul.ac.uk

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Issue

Vol. 99, Iss. 6 — June 2019

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