کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
687616 889337 2009 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Separation of isopropyl alcohol–water mixtures by pervaporation using crosslink IPN membranes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Separation of isopropyl alcohol–water mixtures by pervaporation using crosslink IPN membranes
چکیده انگلیسی

Polyvinyl alcohol (PVOH) has been chemically modified by crosslink copolymerization of acrylic acid (AA) and hydroxyethylmethacrylate (HEMA) in aqueous solution of PVOH and finally crosslinking PVOH to produce a full interpenetrating network (IPN) membrane termed as PVAH. Accordingly, three such full crosslink IPNs, i.e. PVAHI, PVAHII and PVAHIII containing varied weight ratio of PVOH and copolymer along with crosslink PVOH (which has not been modified by copolymerization) have been synthesized and used for pervaporative separation of isopropanol (IPA)–water mixtures. Permeability and water selectivity of these membranes were found to increase with increasing amount of copolymer in PVOH matrix. However, among the three membranes, PVAHIII were found to show highest flux but lower selectivity while PVAHI membrane showed optimum performance in terms of both flux and selectivity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering and Processing: Process Intensification - Volume 48, Issue 5, May 2009, Pages 1020–1029
نویسندگان
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