1·The antifogging agents with hydrophilic radical has excellent initial antifogging;
含有强极性基团的防雾滴剂，初期防雾效果好；
2·METHODS The chitosan-methylmethacrylate copolymers were synthesized by free radical polymerization, and the copolymer formed nanoparticles consisted of hydrophobic core and hydrophilic surface.