The invention relate to the technical field of marine
chemical engineering, in particular to haloacetic acid-containing
chitosan quaternary ammonium salt as well as a preparation method and application thereof. The haloacetic acid-containing
chitosan quaternary ammonium salt is prepared from the raw materials such as
chitosan, 3-
chlorine-2-hydroxypropyl trimethyl
ammonium chloride,
sodium hydroxide, isopropanol and haloacetic acid compounds through the steps of dispersing the chitosa into the isopropanol, swelling, stirring at
room temperature for 4 hours, adding the 3-
chlorine-2-hydroxypropyltrimethyl
ammonium chloride and a
sodium hydroxide solution, continuously reacting for 12 hours, precipitating by using a proper amount of
ethanol to obtain chitosan
quaternary ammonium salt, dissolving the chitosan quaternary ammonium salt into water, and performing
ion exchange on the solution and haloacetate to obtain a final product. The haloacetic acid-containing chitosan quaternary ammoniumsalt as well as the preparation method and the application thereof have the following advantages: the preparation process is simple; the used materials have low cost; and research proves that the haloacetic acid-containing chitosan quaternary ammonium salt has high derivative water
solubility, has high bacteriostatic activity and can be widely applied in the fields of
medicine,
pesticide and thelike.