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

Yuka Sekiguchi, Chie Sawatari, Tetsuo Kondo

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)547-554
Number of pages8
JournalPolymer Bulletin
Volume47
Issue number6
DOIs
Publication statusPublished - Mar 11 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

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

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