本研究利用滲透蒸發技術，以馬來酸為交聯劑之商業化PVA/ PAN複合膜，分離有機溶劑水溶液，如乙醇，異丙醇，及丁醇水溶液。之後將滲透蒸發技術應用於酯化反應，合成乙酸乙酯及乙酸丁酯。探討有加滲透蒸發膜對整個酯化反應的效果。又以SEM，FT-IR，TGA分析薄膜的表面型態、化學結構及熱穩定性。
　　以滲透蒸發分離有機溶劑水溶液，其含水率，溫度及有機物分子量大小，均可影響質傳通量及選擇係數。由實驗結果顯示，乙醇的選擇係數約為20~191，質傳通量0.03~1.25 kg/m2hr ;異丙醇的選擇係數為最高，為115~4500，而質傳通量為最低 0.06~0.84 kg/m2hr ;丁醇的選擇係數為314~2167，質傳通量0.12~0.60 kg/m2hr。B3膜分離乙醇，異丙醇及丁醇水溶液的活化能大小順序由：丁醇 < 異丙醇 < 乙醇。
　　另外，也探討滲透蒸發對酯化反應的影響，實驗結果顯示，薄膜對水的選擇性非常高。水透過薄膜的量幾乎佔70％以上的總質傳通量。由於反應所產生的水大部分是可被移除的，因此滲透蒸發可提升酯化反應的轉化率。

　　This study focus on the application of pervaporation on dehydration of solvents, and also aided esterification reaction .The membrane used for this study is PVA/PAN cross-linked with maleic acid. The dehydration of solvents included ethanol, isopropanol and butanol aqueous mixtures. Afterwards, pervaporation aided esterification to react ethyl acetate and butyl acetate, determine the effect of separation of water on the esterification reaction. We also use SEM, FT-IR, TGA to analyze the membrane surface’s structure chemical structure and thermal stability of the membrane.
　　On dehydration of aqueous solvent mixtures, the water content in the feed mixtures, temperature reaction, the size of organic solvent will affect the selectivity and flux of the membrane. From the experimental results, we find that the selectivity of ethanol is approximately 20~191, the flux is about 0.03~1.25 kg/m2hr ; the selectivity of isopropanol is about 115~4500，the flux is 0.06~0.84 kg/m2hr ; the selectivity of n-butanol is about 314~2167，the flux is 0.12~0.60 kg/m2hr。Value of activation energy of B3 membrane on dehydration of organic solvent in sequence：n-butanol < isopropanol < ethanol。
　　Furthermore, we also discuss the effect of pervaporation on esterification。The experimental results show that the membrane has a high selectivity on water。Water flux has occupied over 70% of the total flux。Since almost all of the water left the feed side, therefore pervaporation can increase the conversion of reaction。

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