𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Location of the O-acetyl group in welan by the reductive-cleavage method

✍ Scribed by John D. Stankowski; Samuel G. Zeller

Book ID
107727172
Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
326 KB
Volume
224
Category
Article
ISSN
0008-6215

No coin nor oath required. For personal study only.

πŸ“œ SIMILAR VOLUMES

Analysis of positions of substitution of
Analysis of positions of substitution of O-acetyl groups in partially O-acetylated cellulose by the reductive-cleavage method
✍ Chang Kiu Lee; Gary R. Gray πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 444 KB

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

The analysis of agarose by the reductive
The analysis of agarose by the reductive cleavage method
✍ Karen Kiwitt-Haschemie; Heinrich Heims; Hans Steinhart; Petra Mischnick πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 613 KB

Agarose was structurally characterised by permethylation and subsequent reductive cleavage. Treatment of the fully methylated polysaccharide with triethylsilane and a mixture of trimethylsilyl methanesulfonate and boron trifluoride etherate followed by a newly developed, acid-catalysed, in situ acet

Analysis of positions of substitution of
Analysis of positions of substitution of O-carboxymethyl groups in partially O-carboxymethylated cellulose by the reductive-cleavage method
✍ Samuel G. Zeller; George W. Greisgraber; Gary R. Gray πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 350 KB

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 chromat