Effects of Fluorine-Containing Graft and Block Copolymer Additives on Removal Characteristics of Dilute Benzene in Water by Microphase-Separated Membranes Modified with These Additives

作者: Tadashi Uragmi , Hiroshi Yamada , Takashi Miyata

DOI: 10.1021/MA052302X

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摘要: This paper focuses on the effects of addition fluorine-containing graft or block copolymer additives composed 1H,1H,2H,2H-heptadecafluorodecyl acylate (perfluoroalkyl acylate, PFA) and poly(dimethylsiloxane) macromonomer (PDMS) PDMS macro-azo-initiator to a microphase-separated membrane consisting poly(methyl methacrylate) (PMMA) benzene/water selectivity for an aqueous dilute benzene solution during pervaporation surface characteristics structures surface-modified PMMA/PDMS membranes. The additives, PFA-g-PDMS PFA-b-PDMS, PMMA-g-PDMS yielded hydrophobic surfaces at air side membranes due localization their air-side these small amount PFA-b-PDMS enhanced both permeability because th...

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