Polystyrene (PS) with pendant hydrophilic gold nanoparticles (AuNPs) were synthesized by free radical copolymerization of styrene and AuNPs monomer at a liquid–liquid interface. The hybrid polymers can self-assemble into ordered structures in aqueous solutions. The hydrophilicity of the hybrid polymers plays a key role in the self-assembly of the polymers. A decrease in the number of hydrophilic AuNPs results in a transition from a micellar structure to a vesicular structure. After grafting of hydrophilic poly(N-vinyl pyrrolidone) chains to the pendant AuNPs, the self-assembly changes from a vesilcular structure to a core–shell-corona structure. The hybrid polymers and PS-coated Fe3O4 nanoparticles can self-assemble into vesicles with PS and PS-coated Fe3O4 nanoparticles in the walls and AuNPs in the coronae, and the size of the vesicles is determined by the number of pendant AuNPs.
通过
苯乙烯和 AuNPS 单体在液-液界面上的自由基共聚合成了带有亲
水性
金纳米粒子 (AuNPS) 的聚
苯乙烯 (PS)。杂化聚合物可以在
水溶液中自组装成有序结构。杂化聚合物的亲
水性在聚合物的自组装中起着关键作用。亲
水性 AuNP 数量的减少导致从胶束结构转变为囊泡结构。将亲
水性聚(
N-乙烯基吡咯烷酮)链接枝到悬垂的
金纳米粒子后,自组装从囊泡结构转变为核-壳-冠结构。杂化聚合物和PS包覆的
Fe3O4纳米颗粒可以自组装成囊泡,囊泡的壁上有PS和PS包覆的 纳米颗粒,冠部有AuNPS,囊泡的大小由悬垂的AuNPS的数量决定。