黄药
纳米颗粒
链式转移
表面改性
聚合物
共聚物
可逆加成-断裂链转移聚合
高分子化学
木筏
聚合
微乳液
聚苯乙烯
材料科学
部分
化学工程
乳液聚合
自由基聚合
化学
有机化学
纳米技术
肺表面活性物质
工程类
作者
Sagrario Pascual,Carl N. Urbani,Michael J. Monteiro
标识
DOI:10.1002/mren.200900058
摘要
Abstract Polymer nanoparticles were prepared via a microemulsion RAFT polymerization using a xanthate chain transfer agent. The xanthate moiety at the polymer chain‐end preferentially resides at the polymer/water interface. This allows not only the formation of block copolymers to be synthesized in water but also further functionalization of the nanoparticle surface with other macromolecules. The synthesis of polystyrene latex nanoparticles by xanthate‐mediated microemulsion polymerization is described. The resulting nanoparticles had an average hydrodynamic diameter of 25 nm and a narrow particle size distribution, with PNIPAM being bound to the surface. Our novel method of functionalized polymer nanoparticles can be used for the coupling of important biomacromolecules. magnified image
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