Journal of the Korean Society of Clothing and Textiles (한국의류학회지)
- Volume 20 Issue 4
- /
- Pages.682-689
- /
- 1996
- /
- 1225-1151(pISSN)
- /
- 2234-0793(eISSN)
A Study on the Preparation and Characterization of Highly Deacetylated Chitosan
고 탈아세틸화도를 갖는 카이토산의 제조와 그의 특성에 관한 연구
Abstract
A preparative method has been proposed for obtaining chitosan products which have a desired degree of deacetylation (DD, %) without much decrease in molecular weight. Deacetylation was prepared by two methods. The method I which was proposed by Domard etc. was that DMSO/thiophenol was used repeatedly only during the deacetylation, the method II was that DMSO/thiophenol was used after the alkali treatment. Then, effective deacetylation was performed by the method ll. To determine the degree of deacetylation, potentiometric titration method was adopted. According to the increase of DD, the viscosity average moleclar weght
Keywords