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Crosslinking of PVA Pervaporation Membrane by Maleic Acid |
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| Authors: | MENG Pingrui CHEN Cuixian YU Lixin LI Jiding JIANG Weijun |
| Abstract: | Maleic acid (MA) crosslinked polyvinyl alcohol (PVA) membrane is prepared using a high temperature esterification reaction between PVA and MA in the presence of sulfuric acid as a catalyst. The crosslinking reaction mechanism is investigated using FT IR spectral analysis. The results indicate that maleic acid reacts with hydroxyl groups in PVA to form mono and bis ester in a two step process. |
| Keywords: | pervaporation polyvinyl alcohol (PVA) maleic acid (MA) crosslinking mechanism Fourier transform Infrared (FT-IR) spectrometry |
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