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1991 / ȣ: V.3,no.2,Jun |
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Membrane from Liquid Crystal Composite of Cellulose Acetate and Poly (4-vinyl pyridine) |
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Hong, Young-Keun (Department of Polymer Sci. and Eng., Univ. of Suwon) Cho, Bong-Heuy (Department of Biology, Univ. of Suwon. Suwon 445-743) |
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Hong, Young-Keun (Department of Polymer Sci. and Eng., Univ. of Suwon) Cho, Bong-Heuy (Department of Biology, Univ. of Suwon. Suwon 445-743) |
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Hong, Young-Keun (Department of Polymer Sci. and Eng., Univ. of Suwon) Cho, Bong-Heuy (Department of |
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Hong, Young-Keun (Department of Polymer Sci. and Eng., Univ. of Suwon) Cho, Bong-Heuy (Department of |
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43 ~ 48 : 6 |
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Cellulose acetate (CA) and poly-4-vinyl pyridine (PVP) in various weight proportions were mixed in a mixed solvent of trifluoroacetic acid: methylene chloride/6:4 (v:v). CA was miscible with PVP in that solvent system. CA/PVP/solvent show liquid crystal in a certain range of concentration and the nature of that liquid crystal was cholesteric. Films of the liquid crystal composite cast from the liquid crystal solutions of CA/PVP were tested in a viewpoint of biomembrane. Results show that considering permselectivity CA/PVP membrane is better than that of CA and CA/PVP membrane is closer to cell membrane. |
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