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Effect of Compatibility of PVC/P 2 Alloy System on Membrane Structure and Performance
Author(s) -
SUN PATRICIA B.,
SUN BENHUI
Publication year - 2003
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.2003.tb06005.x
Subject(s) - copolymer , vinyl chloride , membrane , vinyl acetate , acrylonitrile , materials science , polymer chemistry , maleic anhydride , polyvinyl chloride , polymer , styrene , chemical engineering , compatibility (geochemistry) , composite material , chemistry , biochemistry , engineering
A bstract : The effects of the secondary polymer component (P 2 ) on poly(vinyl chloride) (PVC)/P 2 alloy membrane structure and performance were systematically investigated. A series of P 2 with varying compatibility with PVC used in this study included vinyl chloride‐vinyl acetate copolymer (VC‐co‐VAc); copolymer of vinyl chloride, vinyl acetate‐maleic anhydride copolymer (VC‐co‐VAc‐co‐MAL); isobutylene‐maleic anhydride copolymer (IB‐co‐MAL); poly(methyl methacrylate) (PMMA); poly(vinylidene dichloride) (PVDC); and styrene‐acrylonitrile copolymer (SAN). Alloy membranes were prepared by means of solution blending—phase inversion technique. On the basis of our experimental results, the compatibility of PVC/P 2 was proved to be the most critical factor affecting the alloy membrane structure and performance. Systems with good compatibility, such as PVC/VC‐co‐VAc, are more suitable for preparing membranes with small pore size; whereas systems with partial compatibility, such as PVC/PMMA, are more favored for the formation of large‐pore membranes.