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Synthesis of sulfone-modified poly(vinyl alcohol) and its application for permselective membrane of sulfur dioxide |
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| Authors: | Kiyokazu Imai Tomoo Shiomi Yasuyuki Tezuka Matsunori Takada |
| Abstract: | The Michael type addition reaction of poly(vinyl alcohol) (PVA) with a series of vinyl sulfones, namely methyl vinyl sulfone, ethyl vinyl sulfone, and t-butyl vinyl sulfone, was performed with NaOH as catalyst to produce 2-(alkylsulfonyl)ethyl PVA derivatives. The high permselectivity of sulfur dioxide against nitrogen and oxygen was achieved through these sulfone-modified PVA membranes. |
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