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Wilson, L.D., Mohamed, M.H. and Headley, J.V. (2011) Surface Area and Pore Structure Properties of Urethane-Based Copolymers Containing β-Cyclodextrin. Journal of Colloid and Interface Science, 357, 215-222. http://dx.doi.org/10.1016/j.jcis.2011.01.081

has been cited by the following article:

  • TITLE: Investigation of Chitosan-PVA Composite Films and Their Adsorption Properties

    AUTHORS: Lewis S. Casey, Lee D. Wilson

    KEYWORDS: Chitosan, Polyvinyl Alcohol, Methylene Blue, p-Nitrophenol, Sorption Properties, Composite Films

    JOURNAL NAME: Journal of Geoscience and Environment Protection, Vol.3 No.2, April 1, 2015

    ABSTRACT: Viscous aqueous solutions of chitosan and polyvinyl alcohol (PVA) were blended to enhance miscibility and avoid polymer phase separation. The mixtures were drop-casted and air dried to yield composite film materials that were characterized by equilibrium water uptake, physical stability in aqueous solution, and thermal stability. Chitosan/PVA blends have greater thermal stability, unique morphology, and reduced solubility in acidic solution, thus extending the useful pH range for chitosan as a sorbent material. The uptake properties of the films was investigated using methylene blue (MB) and a p-nitrophenol (PNP) dyes, where it was found that each single component polymer has greater uptake toward MB than PNP. A direct relationship between film composition (chitosan:PVA) with solution pH and the uptake of MB was observed. The results are in agreement with electrostatic interactions and contributions due to the hydrophobic effect for such composite materials.