FIELD: chemical industry. SUBSTANCE: described are new N- cyanomethylated chitosans of formula I: 
wherein degree of polymerization (x) varies from 5 to 10,000, preferably from 20 to 500, n1 is 0-0.6, preferably 0.05- 0.10 part in terms of x; n3+n4 is 0.4-1.0, preferably 0.8- 0.95 part in terms of x; products of hydrolysis thereof. Also described are methods of preparation of said compounds and use thereof. Cyanomethylated chitosans, especially products of hydrolysis thereof, are useful as separating membranes, complexing agents, solid deposition inhibitors, bleach liquor stabilizers, moisture retainers in cosmetic compositions, thickeners and repellents. EFFECT: improved properties of the title compounds. 7 cl, 4 dwg
| Title |
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Author |
Number |
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1995 |
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1993 |
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RU2114856C1 |
