Method of preparing water swellable gel from chitin

Details Method of preparing water swellable gel from chitin Method of preparing water swellable gel from chitin

1997-07-23

2000-02-15

Fonda, Kathleen K.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536 56, 536124, C08B 3708, C08B 1500

Patent

active

060254793

ABSTRACT:
This invention relates to a method of preparing a form of chitin that has consistent shape in the dry form, is treated chemically such that it will swell when exposed to water to form a gel. The gel can be dried to give the dry form. The gel formation upon absorption/swelling in the presence of water and drying to give the dried form is reversible. The extent of swelling can be varied by suitably varying the chemical treatment.

REFERENCES:
patent: 4302252 (1981-11-01), Turbak et al.
Hirano, et al.; "Biological Gels: The Gelation of Chitosan and Chitin"; 1991; pp. 181-188 and 396-402.
Rutherford, et al; "The Permeability of Chitin Films to Water And Solutes", in Chitin, Chitosan . . . Academic Press 1984, pp. 135-143.
Wan, et al; "Promotion of Calcification on Carboxymethylchitin Discs"; Biomaterials 1996, vol. 17, No. 0; Article 320; pp. 1-6.

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