Title of article
Temperature-dependent structure changes in Nafion ionomer studied by PCMW2D IR correlation spectroscopy
Author/Authors
Morita، نويسنده , , Shigeaki and Kitagawa، نويسنده , , Kuniyuki، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2010
Pages
4
From page
56
To page
59
Abstract
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.
Keywords
Moving-window , Infrared , Two-dimensional correlation spectroscopy , Nafion , Perturbation-correlation
Journal title
Journal of Molecular Structure
Serial Year
2010
Journal title
Journal of Molecular Structure
Record number
1967546
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