Impact of Monovalent Counter-ions on the Conformation of Flexible Polyelectrolytes Having Different Molecular Architectures

Published

February 10, 2016

Author(s)

Alexandros Chremos, Jack F. Douglas

Abstract

We explore the condensation of monovalent counter-ions on the molecular conformation of highly charged flexible polyelectrolytes for a range of molecular topologies (linear chains, stars, and unknotted and trefoil rings) by molecular dynamics simulations that include an explicit solvent having short range interaction with the polyelectrolyte. In particular, we investigate how the counter-ions on the polyelectrolytes influence the average molecular shape and with molecular mass variation. We also probe the interfacially bounded ("condensed") layer by calculating the average number of interfacial counter-ions, as well as the degree of coiling of the polyelectrolytes around counter-ions.

Proceedings Title

MRS Advances

Conference Dates

November 29-December 4, 2015

Conference Location

Boston, MA, US

Conference Title

2015 MRS Fall Meeting & Exhibit

Pub Type

Conferences

Download Paper

https://doi.org/10.1557/adv.2016.122

Local Download

Keywords

polyelectrolytes, solution, simulation, molecular dynamics, molecular architecture, counter-ions

Citation

Chremos, A. and Douglas, J. (2016), Impact of Monovalent Counter-ions on the Conformation of Flexible Polyelectrolytes Having Different Molecular Architectures, MRS Advances, Boston, MA, US, [online], https://doi.org/10.1557/adv.2016.122, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=919701 (Accessed October 9, 2025)