한국의류학회지 (Journal of the Korean Society of Clothing and Textiles)
- 제20권4호
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- Pages.682-689
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- 1996
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- 1225-1151(pISSN)
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- 2234-0793(eISSN)
고 탈아세틸화도를 갖는 카이토산의 제조와 그의 특성에 관한 연구
A Study on the Preparation and Characterization of Highly Deacetylated Chitosan
초록
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
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