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Effects of packing density on the gas-transport properties of poly(phenolphthalein phthalate)s

✍ Scribed by F. R. Sheu; R. T. Chern


Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
614 KB
Volume
27
Category
Article
ISSN
0887-6266

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Hydrogen, oxygen and carbon dioxide transport properties are studied at various hydration rates for a large series of sulfonated copolyimides synthesized with a naphthalenic dianhydride, a sulfonated diamine and various non-sulfonated diamines. For all copolymers, the gas permeability coefficient de