@article{article_589808, title={The Role of Polyvinylpyrrolidone as a Pore Former on Microstructure and Performance of Polysulfone Membranes}, journal={Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi}, volume={6}, pages={168–176}, year={2019}, DOI={10.35193/bseufbd.589808}, author={Eren, Bilge and Güney, Murat}, keywords={Membran,Gözenek Oluşturucu,Polisülfon,Polivinilpirolidon,SEM,SEM}, abstract={<p> <span style="font-size:14px;"> </span> </p> <p style="margin-top:10pt;margin-right:0cm;margin-bottom:10pt;margin-left:0cm;text-align:justify;line-height:normal;"> <b> <span lang="en-us" style="font-size:9pt;font-family:’Times New Roman’, serif;color:#000000;" xml:lang="en-us"> <span style="font-size:14px;">In this study, the effect of
polyvinylpyrrolidone (PVP) as a pore former on the performance of polysulfone
(PSF) membrane was studied. XRD spectra revealed that a
crystalline-to-amorphous phase transition occurred with the increasing PVP
amount. SEM results indicated the shape and size of macrovoids in the membranes
were altered with the increasing PVP amount in the polymer solution. The Tg
values for the pure PSF and of 5 wt% PVP added PSF membrane were measured as
189 and 182 °C, respectively. The performances of the membranes were determined
by using the pure water flux (PWF) measurements. The PWF of the membranes
increased from 36.76 to 86.80 L m </span> <sup> <span style="font-size:14px;">-2 </span> </sup> <span style="font-size:14px;"> h </span> <sup> <span style="font-size:14px;">-1 </span> </sup> <span style="font-size:14px;"> with the increase
of PVP amount (0 to 10 wt %) in PSF polymer solution. The relationship between
PWF and PVP content was explained with the increased thermodynamic instability
and kinetic hindrance. </span> </span> </b> </p> <p> <span style="font-size:14px;"> </span> <b> </b> <i> </i> <u> </u> <sub> </sub> <sup> </sup> <strike> </strike> <br /> </p>}, publisher={Bilecik Şeyh Edebali Üniversitesi}