Described herein are methods for determining the degree of substitution (ds) and the positions of substitution of O-acetyl groups in commercial samples of partially O-acetylated cellulose. Sequential neutral methylation of the polymers, base-catalyzed ethylation, and reductive cleavage gives eight p
Analysis of positions of substitution of O-carboxymethyl groups in partially O-carboxymethylated cellulose by the reductive-cleavage method
β Scribed by Samuel G. Zeller; George W. Greisgraber; Gary R. Gray
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 350 KB
- Volume
- 211
- Category
- Article
- ISSN
- 0008-6215
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β¦ Synopsis
A method is described for the analysis of positions of substitution of O-carboxylated groups in commercial samples of O-carboxymethylcellulose. Sequential permethylation of the polymer and reductive cleavage gives eight products, which are analyzed as their O-acetyl derivatives by gas-liquid chromatography.
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