1995 Fiscal Year Final Research Report Summary
Development for Charged Mosaic Composite Membranes Possessing Selective Separation of Amino Acids
| Project/Area Number |
06555285
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
高分子合成
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| Research Institution | TOKYO INSTITUTE OF TECHNOLOGY |
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Principal Investigator |
ISHIZU Koji Tokyo Institute of Technology, Faculty of Engineering, Professor, 工学部, 教授 (90016650)
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| Co-Investigator(Kenkyū-buntansha) |
WATANABE Junya Mitsubishi Kagaku, Yokohama Research Center, Scientist, 横浜研究所, 研究員
KINIWA Hideaki Mitsubishi Kagaku, Yokohama Research Center, Chief Scientist, 横浜研究所, 主任研究員
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| Project Period (FY) |
1994 – 1995
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| Keywords | Charged Mosaic Membrane / Epitaxial Growth / Slective Separation / Amino Acids / Electrolyte |
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| Research Abstract |
A template pattern with alternating poly (4-vinylpyridine) (P4VP) /poly (vinyl alcohol) (PVA) lamellae was fabricated upon a microporous poly (vinyl chloride) (PVC) membrane by casting of poly [4-vinylpyridine (4VP) -g-vinyl alcohol (VA)] graft copolymer. After a treatment of both binding of microporous membrane with graft copolymer and domain fixing of the PVA matrix, a dilute solution of poly [acrylic acid (AA) -benzyl N,N-diomethyldi-thiocarbamate (DMTC)] /P4VP or poly [sodium p-stirenesulfonate (SSS) -DMTC] /P4VP binary blend was cast on this template surface. Two types of weak acid/strong base or strong acid/strong base microdomains formed by epitaxial growth were oriented perpendicularly to the membrane surface. After the chemical treatments : introduction of the charge and domain fixing of ion exchange regions, two types of such mosaic microdomains could be constructed on a microporous membrane. We studied the transport behaviors of organic and inorganic solutes through charged mosaic composite membranes. The permeability of inorganic electrolyte, such as Kcl was about 20-fold compared to those of organic nonelectrolytes, such as glucose and sucrose.L-Phenylalanine exhibits a low value of permeability at the pH of its isoelectric point.
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Research Products
(12 results)
