Organic/Inorganic Hybrid Vesicles Based on A Reactive Block Copolymer
Jianzhong Du, Yongming Chen, Yanhong Zhang, Charles C. Han, Karl Fischer, and Manfred Schmidt
ABSTRACT A novel hybrid vesicle with a cross-linked polyorganosiloxane wall was presented in this communication based on a new reactive block copolymer, poly(ethylene oxide)-block-poly(3-(trimethoxysilyl)propyl methacrylate) (PEO-b-PTMSPMA), which was synthesized by atom transfer radical polymerization. The vesicles were prepared firstly by self-assembly of the block copolymer in a selective solvent, and then the PTMSPMA block was subjected to hydrolysis and polycondensation reaction to fix vesicle wall in the presence of triethylamine as a catalyst. Transmission electron microscopy, scanning electron microscopy, NMR and light scattering have been used to characterize the vesicles.
J. Am. Chem. Soc. 2003, 125, 14710-14711