کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1298276 1498391 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
NMR and electrical conductivity studies of poly(2,6-dimethyl-1,4-phenyleneoxide) ionomers
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
NMR and electrical conductivity studies of poly(2,6-dimethyl-1,4-phenyleneoxide) ionomers
چکیده انگلیسی

Different PPO-SH ionomers were obtained by sulfonation of poly(2,6-dimethyl-1,4-phenyleneoxide) (PPO). The sulfonation was assessed by FTIR and XPS spectroscopies. The acid form of the ionomers was characterized by means of 1H and 13C MAS-NMR spectroscopies. Then, polymers were hydrated under controlled humidity atmosphere and NMR and electrical conductivity studies performed. In the hydrated samples, two stages associated with formation of hydronium (H3O+) species and proton hopping between adsorbed water molecules have been deduced. Both processes participate in the conductivity of PPO-SH samples.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 178, Issues 15–18, June 2007, Pages 1049–1057
نویسندگان
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