Issue 28, 2021

Universal description of steric hindrance in flexible polymer gels

Abstract

In this work, the long-time diffusion of a solute in a chemically crosslinked and flexible hydrogel is computed from a bead-spring model of a polymeric network to assess the effect of steric obstruction. The relative diffusivities obtained for a wide variety of systems can be described by an exponential decay depending on a parameter that differs from that employed for rigid gels. The mathematical expression derived here can approximately predict the diffusivity in flexible gels if steric hindrance is the mechanism ruling diffusion.

Graphical abstract: Universal description of steric hindrance in flexible polymer gels

Supplementary files

Article information

Article type
Communication
Submitted
13 Maijs 2021
Accepted
28 Jūn. 2021
First published
28 Jūn. 2021
This article is Open Access
Creative Commons BY-NC license

Phys. Chem. Chem. Phys., 2021,23, 14997-15002

Universal description of steric hindrance in flexible polymer gels

M. Quesada-Pérez, J. A. Maroto-Centeno, M. D. M. Ramos-Tejada and A. Martín-Molina, Phys. Chem. Chem. Phys., 2021, 23, 14997 DOI: 10.1039/D1CP02113C

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