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Sorption and diffusion of arenes through poly (ethylene-co-vinyl acetate) membranes

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Abstract

The sorption and diffusion of aromatic hydrocarbons through poly (ethylene-co-vinyl acetate) membranes has been investigated in the temperature interval of 25–70 °C using the sorption gravimetric analysis. The carbon–carbon crosslinks are introduced by using benzoyl peroxide (BP). Diffusion through membranes containing different loading of BP was carried out. For all liquids, the equilibrium solvent uptake was influenced by the penetrant size, temperature and crosslinking density. Thermodynamic constants are estimated from the sorption measurements. The values of polymer–solvent interaction parameters obtained from the diffusion experiments have been used to calculate the molecular mass between crosslinks of the network polymer. The transport mechanism was found to follow close Fickian behavior at 28 °C, but at high temperature, mechanism deviates to anomalous mode of transport.

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Authors and Affiliations

  1. School of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala, 686 560, India

    S. Anil Kumar & Sabu Thomas

  2. Rubber Research Institute of India, Kottayam, Kerala, 686 009, India

    M. G. Kumaran

Authors
  1. S. Anil Kumar
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  2. M. G. Kumaran
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  3. Sabu Thomas
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Correspondence to Sabu Thomas.

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Kumar, S.A., Kumaran, M.G. & Thomas, S. Sorption and diffusion of arenes through poly (ethylene-co-vinyl acetate) membranes. J Mater Sci 41, 4892–4900 (2006). https://doi.org/10.1007/s10853-006-0315-1

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  • DOI: https://doi.org/10.1007/s10853-006-0315-1

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