Farzad Raykelan Irangh - Department of Chemical Engineering, North Tehran Branch, Islamic Azad University, Tehran, Iran
Mehrdad Rabie - Separation Processes Research Group (SPRG), Department of Engineering, University of Kashan, Kashan, P.O. Box ۸۷۳۱۷-۵۱۱۶۷, Iran

In this study, the effect of the phase inversion on thin films have been investigated.Asymmetric and symmetric polyurethane thin films were prepared by the wet and dry phase inversion method. For wet phase inversion, thin film was quenched in water. The prepared thin films were characterized with Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and X-ray diffraction (XRD) analyses for morphological comparison.

symmetric-asymmetric polyurethane thin film, dry-wet phase inversion, morphology, porous structure