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Determination of the Molar Substitution of Hydroxypropyl Celluloses by an NMR Method

✍ Scribed by Yang, Xu-jie; Zhi, Zheng-Hang; Lu, Lu-de; Wang, Xin

Book ID
126993183
Publisher
Taylor and Francis Group
Year
1998
Tongue
English
Weight
218 KB
Volume
31
Category
Article
ISSN
0038-7010

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A quantitative method to determine the p
A quantitative method to determine the points of O-(2-hydroxypropyl) substitution in O-(2-hydroxypropyl)-guar
✍ Michael McNeil; Peter Albersheim πŸ“‚ Article πŸ“… 1984 πŸ› Elsevier Science 🌐 English βš– 410 KB

A method is described for locating the 0-(2-hydroxypropyl) groups in 0-(2hydroxypropyl)-substituted guar. Per-0-methylation of the O-(Zhydroxypropyl)guar yielded guar that was partially 0-methylated and partially 0-(2methoxypropyl)ated. This polymer was hydrolyzed, to afford a mixture of partially