کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1411017 1501840 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Temperature-dependent structure changes in Nafion ionomer studied by PCMW2D IR correlation spectroscopy
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Temperature-dependent structure changes in Nafion ionomer studied by PCMW2D IR correlation spectroscopy
چکیده انگلیسی

Temperature-dependent infrared (IR) spectra of a Nafion membrane were measured over a temperature range from 30 to 320 °C. The obtained spectra were analyzed using perturbation-correlation moving-window two-dimensional (PCMW2D) correlation spectroscopy and quantum chemical calculations (QCC). Three-step structural changes in Nafion ionomer induced by temperature were revealed. Dehydration of the ionomer is dominant below 60 °C. Protonation of sulfonate group in the side chain terminal occurs around 100 °C. Thermal degradation of the chains starts above 280 °C.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 974, Issues 1–3, 16 June 2010, Pages 56–59
نویسندگان
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