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Analysis of positions of substitution of O-methyl or O-ethyl groups in partially methylated or ethylated cellulose by the reductive-cleavage method

✍ Scribed by Anello J. D'Ambra; Michael J. Rice; Samuel G. Zeller; Patrick R. Gruber; Gary R. Gray

Publisher: Elsevier Science
Year: 1988
Tongue: English
Weight: 389 KB
Volume: 177
Category: Article
ISSN: 0008-6215
DOI: 10.1016/0008-6215(88)85046-8

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✦ Synopsis

A method is described for the analysis of positions of substitution of O-methyl and O-ethyl groups in commercial samples of O-methylcellulose and O-ethylcellulose, respectively. The method requires perethylation of O-methyl-cellulose and permethylation of O-ethylcellulose. Subsequent reductive cleavage of both polymers gives the same eight products, which are analyzed as their O-acetyl derivatives by gas-liquid chromatography.

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