Static State 13C NMR Chemical Shift Change induced by Magnetic Susceptibility of Natural Rubber rolled by Magic-Angle Spinning

Masashi KITAMURA; Yoshiaki HATA; Hiroshi YASUOKA; Atsushi ASANO

doi:10.2324/gomu.86.285

研究論文

天然ゴムの圧延伸長に付随しておこる固体¹³C NMR化学シフト変化と磁化率

北村成史, 畑慶明, 安岡宏, 浅野敦志

著者情報

キーワード: Natural Rubber, Solid State ¹³C NMR, Magnetic Susceptibility, Magic-angle Spinning, Molecular Orientation

ジャーナルフリー

2013 年 86 巻 9 号 p. 285-290

DOI https://doi.org/10.2324/gomu.86.285

詳細

抄録

We investigated the effect of deformation of natural rubber (NR) on ¹³C NMR spectra. The deformation is occurred by the high centrifugal pressure of the fast magic-angle spinning (MAS). The static state ¹³C NMR spectrum of NR after MAS showed broad and apparently anisotropic peaks, while that of NR before MAS was isotropic. We concluded that the origin of the anisotropic ¹³C peak relates to the magnetic susceptibility difference according to the molecular orientation.

責任著者(Corresponding author)

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