Polyacrylonitrile' Co-mixed Modification I. Polyacrylonitrile-Poly vinyl chloride Co-mixed

The ultrafiltration (UF) membrane performances and chemical stability using polyacryloitrile (acrylonitrile-methyl methacrylate binary copolymer) (PAN), polyvinylchloride (PVC), acrylonitrile-vinyl chloride copolymer (AN-VC copolymer) and PAN-PVC co-mixed polymer were analyzed and compared. It was found that the PAN-PVC co-mixed UF AN-NC UF membrances, and its data reproduction is better. PAN-PVC co-mixed UF membrane has more excellent resistance to acid, alkali and microorganism than PAN. The results show that the co-mixed is also an effective method of polymer modification.