The degradation of solid state chitosan by irradiation at solid state and synergetic method were investigated in this paper. Four factors which affect the degradation effect of chitosan： irradiation, H2O2concentration, the ratio of solvent and solute （volum/ weight）, acetic acid were analyzed. The first three were measured by multiple comparisons of the different level and variance analysis, and infrared spectroscopy was employed to analyze check the degradation products. It is concluded that chitosan＇ s viscosity, and average molecular wei...
