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a novel poly(dimethyl siloxane)poly(oligosilsesquioxanes) composite membrane for pervaporation desulfurization论文.pdf

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Journal of Membrane Science 366 (2011) 335–341 Contents lists available at ScienceDirect Journal of Membrane Science j o u rn al h omepage: w w w. elsev /locate/memsc i A novel poly(dimethyl siloxane)/poly(oligosilsesquioxanes) composite membrane for pervaporation desulfurization Qiu Gen Zhang a , Bing Cheng Fan b , Qing Lin Liu a,∗ , Ai Mei Zhu a , Feng Feng Shi a a National Engineering Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, College of Chemistry Chemical Engineering, Xiamen University, Xiamen 361005, China b School of Chemical Engineering Technology, China University of Mining and Technology, Xuzhou 221116, China a r t i c l e i n f o a b s t r a c t Article history: Pervaporation performance of novel poly(dimethyl siloxane) (PDMS)/poly(oligosilsesquioxanes) (POSS) Received 25 April 2010 composites was analyzed by measuring solubility and diffusion behavior of a series of solvents in the Received in revised form composites using inverse gas chromatography (IGC) ﬁtted with a packed column. The solubility and dif- 13 September 2010 fusion coefﬁcients of thiophene, benzene and toluene at inﬁnite dilution in the composites are greater Accepted 11 October 2010 Available online 15 October 2010 than the other four solvents (cyclohexane, n-pentane, n-hexane and n-heptane). The PDMS/POSS com- posite membranes were thus prepared and characterized using scanning electron microscopy, X-ray