A facile method of determination for distribution of the substituent in O-methylcelluloses using 1H-NMR spectroscopy

Yuka Sekiguchi, Chie Sawatari, Tetsuo Kondo

研究成果: ジャーナルへの寄稿記事

10 引用 (Scopus)

抄録

A facile method to determine the distribution of methyl groups in regioselectively methylated celluloses on anhydroglucose unit was developed using solution 1H-NMR analysis. The determination was deduced from the assignment of the signals of each proton, which directly attached to the glucopyranose ring carbon for partially methylated 2,3-di-O-methylcellulose samples observed in D2O. These data for the distribution of the methyl groups corresponded to those based on the gaschromatographic analysis. This method using the 1H-NMR spectroscopy can facilitate the measurements of the distribution of methyl groups for randomly substituted and commercially available O-methylcelluloses.

元の言語英語
ページ(範囲)547-554
ページ数8
ジャーナルPolymer Bulletin
47
発行部数6
DOI
出版物ステータス出版済み - 3 11 2002
外部発表Yes

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Methylcellulose
Nuclear magnetic resonance spectroscopy
Cellulose
Protons
Nuclear magnetic resonance
nuclear magnetic resonance
Carbon
spectroscopy
cellulose
protons
carbon
rings

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Polymers and Plastics
  • Materials Chemistry

これを引用

A facile method of determination for distribution of the substituent in O-methylcelluloses using 1H-NMR spectroscopy. / Sekiguchi, Yuka; Sawatari, Chie; Kondo, Tetsuo.

:: Polymer Bulletin, 巻 47, 番号 6, 11.03.2002, p. 547-554.

研究成果: ジャーナルへの寄稿記事

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N2 - A facile method to determine the distribution of methyl groups in regioselectively methylated celluloses on anhydroglucose unit was developed using solution 1H-NMR analysis. The determination was deduced from the assignment of the signals of each proton, which directly attached to the glucopyranose ring carbon for partially methylated 2,3-di-O-methylcellulose samples observed in D2O. These data for the distribution of the methyl groups corresponded to those based on the gaschromatographic analysis. This method using the 1H-NMR spectroscopy can facilitate the measurements of the distribution of methyl groups for randomly substituted and commercially available O-methylcelluloses.

AB - A facile method to determine the distribution of methyl groups in regioselectively methylated celluloses on anhydroglucose unit was developed using solution 1H-NMR analysis. The determination was deduced from the assignment of the signals of each proton, which directly attached to the glucopyranose ring carbon for partially methylated 2,3-di-O-methylcellulose samples observed in D2O. These data for the distribution of the methyl groups corresponded to those based on the gaschromatographic analysis. This method using the 1H-NMR spectroscopy can facilitate the measurements of the distribution of methyl groups for randomly substituted and commercially available O-methylcelluloses.

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