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Preparation and Performance of Radiation Grafted Poly(methyl methacrylate)-Graft-Polyimide Pervaporation Membranes for Thiophene/Hydrocarbon Separation

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Abstract:

Radiation grafted poly(methyl methacrylate)-graft-polyimide membranes were prepared for thiophene/hydrocarbon separation. The effects of various grafting conditions such as reaction time, monomer concentration, diluting solvent and initiator amount on the grafting level were investigated. ATR-IR analyses verified the grafting process. Prepared graft modified membranes showed thiophene permselectivity for thiophene/hydrocarbon mixture on pervaporation. At 3.7 % of grafting rate, flux (1.79kg/(m2·h)) and sulfur enrichment factor (3.81) were obtained with 400μg/g feed sulfur content level.

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Periodical:

Advanced Materials Research (Volumes 287-290)

Pages:

588-591

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.287-290.588

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Online since:

July 2011

Authors:

Li Gang Lin

Keywords:

Graft, Membrane, Pervaporation, Thiophene/hydrocarbon

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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