Architecture of polymer particles composed of brush structure at surfaces and construction of colloidal crystals.
The synthesis of polymer particles is reported, which are composed of (1) a spherical colloidal core particle, (2) encapsulation of such seed particles with the inimer 4-vinylbenzyl N,N-diethyldithiocarbamate (VBDC) providing the formation of a hyperbranched structure by a living radical mechanism, and followed by (3) a grafted polymer brush prepared by photo-induced atom transfer radical polymerization (ATRP). The particle sizes (number-average particle diameter Dn=190-300 nm) were controlled by varying the temperature and size distributions were extremely narrow (Dw/Dn=ca. 1.0001). By variation of the particle size, the brilliant color could be varied throughout the visible spectrum. The morphology of the core-shell particles and the properties of corresponding film were characterized by Fourier transform infrared (FT-IR), dynamic light scattering (DLS), reflection spectrum measurements, and scanning electron microscopy (SEM).
Department of Organic Materials and Macromolecules, International Research Center of Macromolecular Science, Tokyo Institute of Technology, 2-12-1-H-133, Ookayama, Meguro-ku, Tokyo 152-8552, Japan.
Dong Hoon
DH
Lee
Yoko
Y
Tokuno
Satoshi
S
Uchida
Masaaki
M
Ozawa
Koji
K
Ishizu