Pyridyl cationic glycopolymer as well as preparation method and application thereof

The invention provides a pyridyl cationic glycopolymer as well as a preparation method and application thereof, and belongs to the technical field of antibiosis. The insoluble polycaprolactone-b-poly (4-vinylpyridine) and unprotected halogen functionalized monosaccharide are gradually subjected to N-quaternization reaction in a solvent, sugar-containing copolymer micelles in a suspension form are formed, and the prepared pyridyl cationic sugar-containing polymer has relatively high antibacterial activity, relatively low hemolysis capability and relatively good biocompatibility, and can be used for preparing the antibacterial polymer. The compound can be applied to preparation of antibacterial drugs and preparation of antibacterial medical instruments. The preparation method of the pyridyl cationic glycopolymer is simple and convenient, and the prepared pyridyl cationic glycopolymer is stable in structure.