The study of hydrogen peroxide oxidize chitosan under the neutral condition
Objective: In order to investigate the producing method for chitosan with different molecular weight. Method: The hydrogen peroxide was added into the chitosan water solution, heated and stirred for some time. Results: The molecular weight of the chitosan decreased from 1.03 to 0.05-0.94 million, and the factors such as reaction time, the quality percentage of hydrogen peroxide , reaction temperature and so on affected it. Conclusion: This method has low cost, mild reaction condition, easy treatment and high output, and it can get the expected chitosan. The factors which may affect the results during degradation are as follows: quality percentage of hydrogen peroxide reaction temperature reaction time.