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  • Oxygen diffusion into polystyrene-bentonite films 

    Authors:Uğur, Şaziye; Yargı, Önder; Pekcan, Önder
    Publisher and Date:(Elsevier, 2009)
    A simple fluorescence technique is proposed for the measurement of the diffusion coefficient of oxygen into polystyrene-clay composite films. The composite films were prepared from the mixture of surfactant-free pyrene (P)-labeled polystyrene latexes (PS) and modified bentonite (MNaLB) at various compositions at room temperature. These films were annealed at 200 degrees C above the glass transition (T-g) temperature of polystyrene for 10 min. Oxygen diffusion into the films was monitored with ...