聚乙烯醇/聚乙烯吡咯烷酮共混膜(I)制备与表征

Poly (vinyl alcohol) (PVA) was used as the main materials to prepare pervaporation membranes. Homogeneous PVA membranes were prepared by blending with polyvinylpyrrolidone (PVP) and then cross-linked with glutaraldehyde (GA). The membranes were characterized by Fourier transform infrared spectroscopy (FTIR), wide-angle X-ray diffraction (XRD) and scanning electron microscopy (SEM). The effects of the PVP content and cross-linking agent volume on the structure of PVA membranes were studied. The results show that the cross-linked PVA/PVP blend membranes have high hydrophilicity.