Sorption and perturbation of water at polyelectrolyte interfaces. Paper 5 - effects of water isotopic dilution

DENG, C. S., SAMMON, C. and YARWOOD, J. (2003). Sorption and perturbation of water at polyelectrolyte interfaces. Paper 5 - effects of water isotopic dilution. Polymer, 44 (7), 2057-2065.

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Link to published version:: 10.1016/S0032-3861(03)00045-4

Abstract

We have carefully examined the possible role of local oscillator coupling in D2O(or H2O), and locally concentrated evanescent electric fields in creating a large intensity perturbation of the v(OD) band of water in the polyelectrolytes SPEES/PES (S-5, S-8 and S2O). Isotopic dilution experiments lead to the same (or higher) extinction coefficient while an ATR/transmission experimental comparison also gives a similar intensity. We conclude that neither effect is responsible for enhanced P values, and that these must be caused by strong polymer-water interactions at the anionic SO3- groups on these polymers. (C) 2003 Elsevier Science Ltd. All rights reserved.

Item Type: Article
Research Institute, Centre or Group: Materials and Engineering Research Institute > Polymers Nanocomposites and Modelling Research Centre > Polymers, Composites and Spectroscopy Group
Identification Number: 10.1016/S0032-3861(03)00045-4
Depositing User: Jill Hazard
Date Deposited: 12 Apr 2010 12:20
Last Modified: 29 Sep 2010 09:40
URI: http://shura.shu.ac.uk/id/eprint/1584

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