Abstract
Conditions for dry-wet spinning of spherical chitosan granules 0.5–2.0 mm in diameter into a two-layer spinning bath consisting of immiscible liquids are proposed, where an organic liquid, decane in particular, is the upper layer of the bath while a solution of ammonium hydroxide is the lower layer. The possibility of obtaining chitosan microgranules from 2 to 30 µm in diameter by emulsification of a solution of chitosan in decane or a solution of an anion-active surfactant — sodium dodecyl sulfate — is demonstrated. The effect of the molecular weight and concentration of the solutions on the granule-forming power of chitosan is established. A 6% solution of chitosan with a molecular weight of 200 kD is recommended for further studies.
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Translated from Khimicheskie Volokna, No. 5, pp. 26–29, January–February, 2005.
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Mironov, A.V., Vedenina, O.L., Vikhoreva, G.A. et al. Manufacture of Granulated Chitosan. Fibre Chem 37, 22–25 (2005). https://doi.org/10.1007/s10692-005-0044-2
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DOI: https://doi.org/10.1007/s10692-005-0044-2