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The Novel Synthesis of Carboxymethyl-chitin by a New Process
The Novel Synthesis of Carboxymethyl-chitin by a New Process
Journal of the Korean Chemical Society. 2001. Aug, 45(4): 334-340
  • Published : August 00, 2001
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Han, Sang Mun
Ahn, Byung Je
Kim, Yong-Woo
Kim, Yong Beom
Yu, Kook Hyun
Lee, Seung Jin

Abstract
The water soluble carboxymethyl-chitin (CM-chitin) has been well known to be very useful to the cosmetic field as a moisturizer, a smoothener, a cell activater and a cleaner for face skin conditioning. In this study, the preparation process of CM-chitin was simplified with elimination of some procedures in the conventional method. The chitin powder was mixed with sodium hydroxide solution. And then a mixture of sodium monochloroacetate (or monochloroacetic acid) and isopropyl alcohol (or a mixed solution with water and isopropyl alcohol) was added to thorough the agitation and the freezing during 16 hours. The CM-chitin with a high degree of substitution by the improved process was obtained.