• solvent-resistant membrane based on uv cross-linking of styrene functionalized polyphenylsulfone prepared by heck reaction

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1396/07/16
    • تاریخ انتشار در تی پی بین: 1396/07/16
    • تعداد بازدید: 305
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -

    in the present investigation, styrene functionalized polyphenylsulfone (sppsu) was prepared by reaction of polyphenylsulfone (ppsu) with styrene via heck reaction. nanofiltration composite membranes were prepared using crosslinkable styrene-ppsu and the crosslinking reaction performed via uv exposure. irgacure 2959 and methylenebisacrylamide were added in styrene-ppsu to perform crosslinking reaction. nanofiltration membranes were tested for fourier transform infrared spectroscopy (ft-ir), nucleation magnetic resonance (nmr), thermal properties, scanning electron microscopy (sem), and filtration experiments. ft-ir and nmr studies confirmed the substitution of styrene moiety into ppsu main-chains. sem analysis confirmed the deposition and uniformity of toplayer onto the support. differential scanning calorimetry (dsc) indicated a decrease in the glass transition temperature of styrene-ppsu. the performance of the membranes changed slightly for acetone and toluene while iso-propanol and n-hexane were completely stable after solvent exposure.

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