EFFECT OF ACID-BASE INTERACTION ON THE SORPTION CHARACTERISTICS OF LIQUIDS IN POLY(VINYLIDENE FLUORIDE)

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The sorption characteristics of various liquids in poly (vinylidene fluoride) (PVDF) were investigated in relation to the Lewis acid-base interaction between the liquids and the polymer. The sorption amount of various liquids and the sorption selectivity of binary mixtures in PVDF were measured and their characteristics were found to be significantly affected by acid-base interaction. The acid-base interaction was evaluated from the Drago constants of PVDF, which were obtained by extending the Fowkes' method observing the shift of stretching frequency of the carbonyl bond of ethylacetate sorbed in PVDF. The partial molar enthalpy change of mixing at infinite dilution was estimated using the Drago constants of PVDF and used as a parameter explaining the sorption characteristics of liquids in PVDF.
Publisher
Wiley-Blackwell
Issue Date
1992
Citation

Journal of Applied Polymer Science, Vol.45, pp.1777-1782

ISSN
0021-8995
URI
http://hdl.handle.net/10203/25133
Appears in Collection
CBE-Journal Papers(저널논문)

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