Pervaporation separation performance of Poly (vinyl) Alcoholmembrane cross-Linked with Tartaric acid in the Low concentration of Acetic acid aqueous feed solution = Pervaporation separation performance of Poly (vinyl) Alcoholmembrane cross-Linked with Tartaric acid in the Low concentration of Acetic acid aqueous feed solution

다국어 초록 (Multilingual Abstract)

The pervaporation test was conducted by using poly (vinyl) alcohol cross-linked with dicarboxylic acid, Tartaric acid. Various property of the prepared membrane was characterized by IR spectroscopy, Differential scanning calorimetry (DSC), Contact angle test, and swelling studies, after then it was finally applied in the pervaporation test using different concentration of acetic acid feed solution. In the IR spectra, we could observe that cross-liking reaction became more intense with increase of the tartaric acid concentration in the casting solution while there was no remarkable decrease of hydroxyl group on the part of cross-liking reaction because of hydroxyl group supplement of the tartaric acid. This result also could be supported by result of both DSC and contact angle measurement. From the pervaporation test result, we observed that flux steadily decreased with increase of acetic acid content in the feed solution, separation factor was a contrast to the flux. And acetic acid content in the permeated solution was no significant increase with increase of acetic acid content in the feed solution. Accordingly, it could be concluded that this membrane has a higher flux and good selectivity in the low concentration of acetic acid feed solution.