Diffusion of water and acetone into poly(vinyl alcohol)-clay nanocomposites using ATR-FTIR

DOPPERS, L. M., BREEN, C. and SAMMON, C. (2004). Diffusion of water and acetone into poly(vinyl alcohol)-clay nanocomposites using ATR-FTIR. Vibrational Spectroscopy, 35 (1-2), 27-32.

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Link to published version:: 10.1016/j.vibspec.2003.11.008

Abstract

Polymer-clay nanocomposites have been prepared by solution intercalation of poly(vinyl alcohol) (PVOH) into Na+ Montmorillonite (Na+ Cloisite(R)). XRD has been used to determine the dispersion of the individual clay platelets in the PVOH matrix. ATR-FTIR has been used to perform in situ diffusion experiments of water and acetone into nanocomposite films. The data has been compared to that obtained from the pure polymers to evaluate the barrier properties of the nanocomposites. The dominant process during water uptake was polymer solvation so the clay loading exerted little influence on the uptake rate. In contrast, the rate of diffusion of acetone was significantly reduced as the clay loading in the nanocomposite increased. (C) 2003 Elsevier B.V. All rights reserved.

Item Type: Article
Additional Information: 2nd International Conference on Advanced Vibrational Spectroscopy Aug. 24-29, 2003 University of Nottingham, Nottingham, England.
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/j.vibspec.2003.11.008
Depositing User: Jill Hazard
Date Deposited: 12 Apr 2010 12:19
Last Modified: 29 Sep 2010 09:40
URI: http://shura.shu.ac.uk/id/eprint/1585

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