Abstract:Cross-linked hydroxy terminated polybutadiene (HTPB)-based polyurethaneurea (PU), HTPB-divinyl benzene (DVB)-PU, was synthesized by a three-step polymerization process. It was first used as membrane material to separate p-/o-xylene mixtures by pervaporation (PV). The effects of the content of cross-linker DVB, feed concentration, and operating temperature on the PV performance of HTPB-DVB-PU membranes were investigated. The membranes demonstrated p-xylene permselectivity as well as high total flux. The introdu… Show more
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