Document Detail

Synthesis of chitin cycloalkyl ester derivatives and their physical properties.
MedLine Citation:
PMID:  20691431     Owner:  NLM     Status:  MEDLINE    
A series of acylated chitin derivatives was prepared by reacting chitin in a solution of trifluoroacetic anhydride and each of the cyclopropyl, cyclobutyl, cyclopentyl, and cyclohexyl carboxylic acids. The degree of O-acyl substitution was in a range of 1.1-1.4 depending upon the nature of the cyclic acid added, as determined by FT-IR analysis. The solubility of the products in the organic solvents of DMF and THF increased with an increase in the cyclic chain length of the carboxylic acid. Thermal gravimetric analysis indicated that the products were stable up to 220 degrees C for chitin cyclopropanoate and cyclobutanoate, and 250 degrees C for chitin cyclopentanoate and cyclohexanoate. The surface morphology of the products by scanning electron microscopic analysis revealed porous and globular surface for chitin cyclobutanoate, cyclopentanoate, and cyclohexanoate, contrast to the dense and smooth organization for the cyclopropanoate.
Lok Ranjan Bhatt; Bo Mi Kim; Chai Young An; Chi chong Lu; Yong Sik Chung; Min Gyu Soung; Seok Hoon Park; Kyu Yun Chai
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-07-11
Journal Detail:
Title:  Carbohydrate research     Volume:  345     ISSN:  1873-426X     ISO Abbreviation:  Carbohydr. Res.     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-09-06     Completed Date:  2010-12-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0043535     Medline TA:  Carbohydr Res     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  2102-6     Citation Subset:  IM    
Copyright Information:
Copyright 2010 Elsevier Ltd. All rights reserved.
Department of Bionanochemistry, School of Natural Sciences, Wonkwang University, Iksan, Chonbuk 570-749, Republic of Korea.
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MeSH Terms
Carboxylic Acids / chemistry
Chitin / analogs & derivatives*,  chemical synthesis
Microscopy, Electron, Scanning
Nuclear Magnetic Resonance, Biomolecular
Spectroscopy, Fourier Transform Infrared
Reg. No./Substance:
0/Carboxylic Acids; 1398-61-4/Chitin

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