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High-resolution NMR spectra of n-alkanes penetrating into carbon fibers and of protons in carbon fibers
Authors:Yamazaki Yuya  Kobayashi Nobuaki  Nikki Kunio  Kuwahara Daisuke
Institution:The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu-shi, Tokyo 182-8585, Japan.
Abstract:We present a simple NMR method for microscopically exploring the local environment in carbon fibers. The method utilizes n-alkanes as probe molecules, where the n-alkanes penetrate carbon fibers of interest. The high-resolution (1)H NMR spectra for a mixture of a carbon fiber and n-alkanes acquired by this method show a shift of the resonance line, which is due to the local structure of the fiber. The utility of this method is discussed on the basis of the (1)H NMR spectra obtained. In addition, the (1)H distribution and the local motion in the structure of the carbon fiber are revealed in view of the (1)H NMR spectra.
Keywords:NMR  13C  1H  carbon fiber  n‐alkanes  probe molecules
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