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
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله

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
Journal: Solid State Ionics - Volume 178, Issues 15–18, June 2007, Pages 1049–1057
نویسندگان
M.J. Cánovas, I. Sobrados, J. Sanz, T.A. Ezquerra, A. Linares,