Study on the synergetic degradation of chitosan with ultraviolet light and hydrogen peroxide.
Chitosan was effectively degraded by hydrogen peroxide under irradiation with ultraviolet light. The existence of a synergetic effect on the degradation was demonstrated by means of viscometry. In addition, the optimal conditions of degradation were determined on the basis of orthogonal tests. The structure of the degraded product was characterized by Fourier-transform infrared spectra (FTIR) analysis and diffuse reflectance spectra (DRS) analysis. The mechanism of the degradation of chitosan was correlated with cleavage of the glycosidic bond.
Wang
Shi-Ming
SM
College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, China. fjwsm@tom.com
Huang
Qun-Zeng
QZ
Wang
Qiong-Sheng
QS
D048271:Chitosan / Q000737:chemistry* / Q000378:metabolism / Q000528:radiation effects*; D006861:Hydrogen Peroxide / Q000494:pharmacology*; D008903:Minerals / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013057:Spectrum Analysis; D014466:Ultraviolet Rays; D014783:Viscosity / Q000187:drug effects / Q000528:radiation effects
D008903:Minerals; D048271:Chitosan; D006861:Hydrogen Peroxide