Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 45, Issue 5, Pages 499-503Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2009.08.007
Keywords
Chitosan; Michael reaction; Photo-polymeriable chitosan; Antibacterial
Funding
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
- The Program for Changjiang Scholars and Innovative Research Team in University
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N-Alkyled photo-polymeriable chitosan derivative (PEGDA-CS) was synthesized by Michael reaction of chitosan and polyethylene glycol diacrylate (PEGDA) under mild reaction conditions. The chemical structure and physical properties of PEGDA-CS were characterized by Fr-IR, H-1 NMR, XRD and TG techniques. The degree of substitution (DS) of PEGDA-CS could be calculated from H-1 NMR. PEGDA-CS exhibited good solubility in distilled water. XRD analysis showed that PEGDA-CS was amorphous. TG results demonstrated that thermal stability of the derivate was lower than that of chitosan. Antimicrobial test showed that PEGDA-CS had the antimicrobial activity on Escherichia coli. It could photopolymerize under ultraviolet light with 2959 as initiator. Published by Elsevier B.V.
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