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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.

方法用自由基聚合法合成壳聚糖-甲基丙烯酸甲酯共聚物，该聚合物在水中形成具有疏水核心、亲水表面的纳米粒。