Preparation of plasma-grafted polymer membranes and their morphology and pervaporation properties toward benzene/cyclohexane mixtures

✍ Scribed by Hongyuan Wang; Xiao Lin; Kazuhiro Tanaka; Hidetoshi Kita; Ken-ichi Okamoto

• Book ID: 102656625
• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 599 KB
• Volume: 36
• Category: Article
• ISSN: 0887-624X
• DOI: 10.1002/(sici)1099-0518(19980930)36:13<2247::aid-pola11>3.0.co;2-a

✦ Synopsis

Composite membranes were prepared by plasma-induced graft polymerization of vinyl monomers onto porous substrates of high density polyethylene, and the relationship between the polymerization conditions and morphological structure and pervaporation performance toward benzene/cyclohexane mixtures was investigated in detail. The morphological structures of the plasma-grafted membranes depended on the monomer reactivity, plasma treatment manner, and graft polymerization conditions. Pervaporation properties were closely related to the graft monomers and the morphological structures. The poly(glycidyl methacrylate)-grafted membranes prepared by homogeneous both sides plasma treatment and under mild polymerization conditions showed the highest pervaporation performance with a permeation flux of 0.3 kg/(m 2 h) and separation factor of 22 at 60 wt % benzene and 70°C.