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Synthesis and Charaterization of bile acid conjugated Low Molecular weight Water-soluble Chitosan
허선행 ( Sun Heang Heo ),반성진 ( Seong Jin Ban ),임수일 ( Su Il Lim ),강민종 ( Min Jeong Kang ),장진선 ( Jin Sun Jang ),남정표 ( Joung Pyo Nam ),김동곤 ( Dong Gon Kim ),정창남 ( Chang Nam Jeong ),장미경 ( Mi Kyeong Jang ),나제운 한국공업화학회 2008 응용화학 Vol.12 No.2
N,O와 N-O Carboxymethyl Chitosan의 NMR 기능을 이용한 분광학적 특성분석
남정표 ( Joung Pyo Nam ),허선행 ( Sun Heang Heo ),정현 ( Hyun Jung ),김동곤 ( Dong Gon Kim ),정영일 ( Young Il Jeong ),장미경 ( Mi Kyeong Jang ),나재운 ( Jae Woon Nah ) 한국공업화학회 2009 응용화학 Vol.13 No.1
Carboxymethyl chitosan (CMCh) was prepared by chemical reaction with mono-chloroacetic acid and glyoxylic acid to low molecular weight water soluble chitosan (LMWSC) of C6-OH (O-Carboxymethyl chitosan), C2-NH2 (N-Carboxymethylc chitosan) and both C6-OH and C2-NH2 (N,O-Carboxymethyl chitosan) group to apply as an ionic-drug carrier. The structure were characterized by 1H-NMR, 13C-NMR, DEPT 135 and HMQC (Heteronuclear Multiple Quantum Correlation). Degree of substitution (DS) and degree of deacetylation (DDA) of CMCh was determined by 1H-NMR.