Abstract |
Dehydration of binary methyl acetate-water mixtures under neutral, acidic, and basic conditions was carried out by using PERVAP composite membranes based on polyvinyl alcohol and poly(1-vinylpyrrolidone-co-2-(dimethylamino)ethyl methacrylate) P(VP-co-DMAEMA). The effects of an acid (HCl) and a base (NaOH) on the separation performance of the membrane during the pervaporation process were investigated. The pH-responsive nature of membranes has been confirmed by swelling tests and analysis of the chemical structure of polymeric membranes. In addition, a mechanism of ring-opening of VP units is proposed and correlated to the changes of membrane separation performance.
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Authors | Alessandro Angelini, Csaba Fodor, Wilfredo Yave, Luigi Leva, Anja Car, Wolfgang Meier |
Journal | ACS omega
(ACS Omega)
Vol. 3
Issue 12
Pg. 18950-18957
(Dec 31 2018)
ISSN: 2470-1343 [Electronic] United States |
PMID | 31458459
(Publication Type: Journal Article)
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