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The pervaporation properties of poly lactic acid (PLA), a natural source polymer, were studied in a polar/non-polar case study. PLA/PVP (poly vinyl pyrrolidone) blend membranes were prepared containing different PVP contents and evaluated in ethanol/ethyl tert-butyl ether azeotropic separation. The swelling and mechanical properties of the membranes were investigated. SEM cross-sectional images showed...
Poly(vinyl pyrrolidone) (PVP) was used as an additive to modify the structure and the physical–chemical properties of poly(lactic acid) (PLA) membranes. The membranes with different PVP contents up to 21.33wt% were employed for pervaporation separation of ethanol/cyclohexane (EtOH/CHx) azeotropic mixture. Several characterization tests were carried out on the membranes including contact angle measurements,...
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