کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
638535 | 1456173 | 2007 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase separation and morphology control of polymer blend membranes of sulfonated and nonsulfonated polysulfones for direct methanol fuel cell application
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Polymer blend membranes composed of a proton conducting component and a methanol barrier component were prepared for direct methanol fuel cells. Sulfonated poly(arylene ether sulfone) copolymer with 60Â mol% sulfonation (sPAES-60) was synthesized via a poly-condensation reaction from 3,3â²-disulfonated-4,4â²-dichlorodiphenyl sulfone (SDCDPS), 4,4â²-dichlorodiphenyl sulfone (DCDPS), and 4,4â²-biphenol (BP) for the proton conducting component. Poly(ether) sulfone copolymer (RH-2000, Solvay) was used to compensate for the mechanical and chemical weakness of sPAES-60 and to reduce the methanol permeability. By varying the drying condition and the concentration of the casting solution (10, 15, 20Â wt%), blend membranes having various phase separated morphologies were obtained. The morphology was characterized by SEM, EDAX, and AFM. In this paper, the effect of the drying conditions on the phase separation and morphology of the blend membranes was investigated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 299, Issues 1â2, 1 August 2007, Pages 19-27
Journal: Journal of Membrane Science - Volume 299, Issues 1â2, 1 August 2007, Pages 19-27
نویسندگان
Dong Hwee Kim, Jisu Choi, Young Taik Hong, Sung Chul Kim,