Abstract
Use of nitrate oxidants (HNO3 or N2O4), each of which causes both oxidation and hydrolysis of cellulose, is proposed for one-or two-stage transformation of native cellulose into microcrystalline cellulose topochemically modified with carboxyl groups. Conversion of the acid form of the preparations into the salt forms (sodium, lithium) makes it easy to obtain stable thixotropic hydrogels, revealed to be effective enterosorbents and drug vehicles in clinical trials.
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Translated from Khimicheskie Volokna, No. 6, pp. 59–62, November–December, 2005.
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Kaputskii, F.N., Gert, E.V., Torgashov, V.I. et al. Hydrogels for medical applications fabricated by oxidative-hydrolytic modification of cellulose. Fibre Chem 37, 485–489 (2005). https://doi.org/10.1007/s10692-006-0026-z
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DOI: https://doi.org/10.1007/s10692-006-0026-z