About this Journal Submit a Manuscript Table of Contents
ISRN Physical Chemistry
Volume 2012 (2012), Article ID 397052, 10 pages
http://dx.doi.org/10.5402/2012/397052
Research Article

Long- and Intermediate-Range Correlations in Polymer-Containing Ionic Liquids

1Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow 119991, Russia
2Department of Physics, Tver State University, Tver 170002, Russia

Received 28 July 2011; Accepted 23 August 2011

Academic Editors: I. Anusiewicz, S. Sasaki, and D. Strout

Copyright © 2012 Pavel V. Komarov and Lubov V. Zherenkova. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Structure on long- and intermediate-length scales in polymer-containing ionic liquids is investigated on the basis of the polymer integral equation method. The structural features of flexible homopolymer chains and the ions of the solvent are analyzed in reciprocal space using partial structure factors. There is a range of polymer concentrations at which the long-range correlations of polymer chains are observed. When these correlations are pronounced, the decrease of the characteristic scale of the long-range polymer ordering with increasing polymer concentration fits a power law. The effect of adding polymer chains upon the ordering of the ions of the solvent is also considered. Upon addition of a polymer, it is shown that long-range correlations of ions can arise, although the intermediate-range ordering typical of pure ionic liquids remains dominant and stable. The dependence of the characteristic scale of the long-range ordering of the ions of the solvent on the polymer concentration also fits a power law.