Selection criteria for solvent and coagu
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Ruoh-Chyu Ruaan; Terry Chang; Da-Ming Wang
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Article
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1999
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John Wiley and Sons
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English
β 104 KB
Sponge-like and finger-like structures are two distinct membrane structures commonly observed in membranes produced by the wet immersion process. An index β½ calculated solely from solubility parameters was defined as an indicator of the membrane structure. The β½ values of four polymers, poly(methyl