Pervaporation Separation of Water/Ethanol Mixture by Poly(phenylene oxide) and Sulfonated Poly(phenylene oxide) Membranes

doi:10.1002/app.25365

CNU IR > College of Sustainable Environment and Recreation > Dept. of Environmental Engineering and Science (including master's program) > Periodical Articles > Item 310902800/22235

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Title:	Pervaporation Separation of Water/Ethanol Mixture by Poly(phenylene oxide) and Sulfonated Poly(phenylene oxide) Membranes
Authors:	Chi-Yu Shih Shih-Hsiung Chen Ray-May Liou Juin-Yih Lai Jang-Song Chang
Contributors:	環境工程與科學系
Keywords:	poly(phenylene oxide) membrane pervaporation sulfonation hydroplilic water/ethanol mixture
Date:	2007-04
Issue Date:	2010-01-15 11:18:01 (UTC+8)
Abstract:	Sulfonated poly(phenylene oxide) (SPPO) membranes were prepared for dehydrating water/ethanol mixtures. The effects of hydration of sulfonated membranes on pervaporation (PV) performance were discussed by comparing the characteristics of pure PPO and SPPO membranes. The differences in microstructural and hydrophilic properties of membranes were characterized by means of atomic force microscopy and swelling test. The degree of sulfonation of PPO dominates the hydrophilicity of sulfonated membranes and it plays an important role to determine the dehydration performance of PV membranes. The sulfonated membranes present excellent water permeation rate of about 300 g m-2 h-1 with good selectivity up to 700. The experimental results also show that SPPO membranes exhibit better PV performance than pure PPO membranes due to the improvement in hydrophilicity of modified membranes with sulfonation method. The hydrophilic sulfonated membranes enhance the permeate hydration process in membrane matrix and increase the separation performance.
Relation:	Journal of Applied Polymer Science 105(3)： p.1566-1574
Appears in Collections:	[Dept. of Environmental Engineering and Science (including master's program)] Periodical Articles

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