Responsive polymer nanoparticles formed by poly(ether amine) containing coumarin units and a poly(ethylene oxide) short chain.
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.
Jiang
Xuesong
X
School of Chemistry & Chemical Technology, State Key Laboratory for Metal-Composite Materials, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China. ponygle@sjtu.edu.cn
Wang
Rui
R
Ren
Yanrong
Y
Yin
Jie
J
D000588:Amines / Q000737:chemistry*; D003374:Coumarins / Q000032:analysis / Q000737:chemistry*; D004986:Ether / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008823:Micelles; D046529:Microscopy, Electron, Transmission / Q000379:methods; D008956:Models, Chemical; D053758:Nanoparticles / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods; D011092:Polyethylene Glycols / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D013053:Spectrophotometry; D013499:Surface Properties; D013696:Temperature
D000588:Amines; D003374:Coumarins; D008823:Micelles; D011108:Polymers; D004986:Ether; D011092:Polyethylene Glycols; C030123:coumarin