Responsive polymer nanoparticles formed by poly(ether amine) containing coumarin units and a poly(ethylene oxide) short chain.
Responsive polymer nanoparticles formed by poly(ether amine) containing coumarin units and a poly(ethylene oxide) short chain.
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DOI：
10.1021/la9009042
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发表时间：
2009-07
期刊：
影响因子：
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通讯作者：
Xuesong Jiang;Rui Wang;Yanrong Ren;Jie Yin
中科院分区：
文献类型：
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作者：
Xuesong Jiang;Rui Wang;Yanrong Ren;Jie Yin
我们报道了一种含有聚环氧乙烷（PEO）短嵌段和香豆素单元的新型聚（醚胺）（PEAC），它是通过二环氧和二胺单体的亲核加成/开环聚合合成的。 PEAC可以直接分散在水溶液中，形成直径为50-60 nm的均匀尺寸的纳米颗粒。通过透射电子显微镜（TEM）和紫外-可见（UV-vis）光谱揭示了PEAC聚集的整个过程。结果表明，这些聚合物纳米粒子对温度和光具有非常敏锐的响应，并且可以形成内部纳米粒子的复杂微胶束。
We reported a novel poly(ether amine) (PEAC) containing poly(ethylene oxide) (PEO) short blocks and coumarin units, which was synthesized by nucleophilic addition/ring-opening polymerization of diepoxy and diamine monomers. PEAC can be directly dispersed in aqueous solution as uniformly sized nanoparticles 50-60 nm in diameter. The whole process for aggregation of PEAC was revealed by transmission electron microscopy (TEM) and ultraviolet-visible (UV-vis) spectra. The results show that these polymeric nanoparticles possess a very sharp response to temperature and light, and can form complex micromicelles with nanoparticles inside.