以丙烯酸为偶联剂制备二氧化硅/聚丙烯酸-丙烯酰胺复合材料

Synthesis of SiO_2/P(AA-AM) Core/Shell Hybrid Material Using Acrylic Acid as Coupling Agent

以丙烯酸为偶联剂,通过无皂乳液聚合方法制备了二氧化硅/聚丙烯酸-丙烯酰胺复合材料。先用丙烯酸通过stobe改进法对SiO_2纳米粒子表面进行处理,得到表面接枝一层丙烯酸的SiO_2粒子;然后通过与丙烯酰胺单体聚合得到二氧化硅/聚丙烯酸-丙烯酰胺核壳纳米复合材料。采用红外光谱和热重分析法对产物进行了表征。

A hybrid SiO2/P （AA-AM） core/shell nanoparticles were prepared by soap-free emulsion polymerization using acrylic acid （AA） as coupling agent. First, the surface of silica nanoparticles was treated by improved stobe process using acrylic acid and SiO2/AA nanoparticles was prepared, then SiO2/P （ AA - AM） core-shell nanoparticles hybrid was prepared by polymerization with acrylamide （AM） monomer. Theproduct was characterized by FTIR and TG.