کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7713524 | 1497427 | 2015 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Properties and morphology study of proton exchange membranes fabricated from the pendant sulfonated poly(arylene ether ketone) copolymers composed of hydrophobic and hydrophilic multi-blocks for fuel cell
ترجمه فارسی عنوان
خواص و بررسی مورفولوژی غشاهای تبادل پروتون ساخته شده از کوپلیمرهای سولفونیک پلی کریستین (آرویلن اتر کتون) آویز ساخته شده از چند بلوک هیدروفوب و هیدروفیلی برای سلول سوختی
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کلمات کلیدی
سلول سوختی، غشاء، مبادله پروتون خوشه یونی، پلی (آرویلن اتر کتون)،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
Polymer electrolyte membranes are prepared from poly(arylene ether ketone) composed of hydrophobic and hydrophilic multi-blocks. 4,4â²-bis(4-hydroxyphenyl)-valeric acid and 4,4â²-difluorobenzophenone are used for the synthesis of hydrophilic oligomers, while bisphenol A and 4,4â²-difluorobenzophenone are used for hydrophobic oligomers. The proton conducting property is provided by sulfonation of the pendant carboxylic groups in hydrophilic blocks. The chemical structure of the oligomers and polymer synthesized is identified using 1H- and 19F- nuclear magnetic resonance (NMR) and attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopies as well as gel permeation chromatography (GPC). The development of distinguished hydrophobic-hydrophilic phase separation is confirmed by small-angle X-ray scattering (SAXS) spectroscopy and atomic force microscope (AFM). The thermal, mechanical, and chemical stabilities are endowed by the hydrophobic segment, whereas the proton conducting and water uptake properties are provided by the hydrophilic segment. The proton conductivity of the prepared membrane is comparable to that of Nafion 115 when the hydrophobic and hydrophilic block molecular weights are 3000 g molâ1 and 18,000 g molâ1, respectively. The block length effect on the membrane properties can be explained by the ion cluster dimension and structure examined by SAXS and AFM.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 46, 14 December 2015, Pages 16443-16456
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 46, 14 December 2015, Pages 16443-16456
نویسندگان
Kyuhyun Kang, Byungsan Kwon, Shin Woo Choi, Jongwook Lee, Dukjoon Kim,