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Self‐Flocculating/Self‐Dispersing Oscillation of Microgels
Author(s) -
Suzuki Daisuke,
Sakai Takamasa,
Yoshida Ryo
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200703953
Subject(s) - flocculation , copolymer , self oscillation , oscillation (cell signaling) , materials science , polymer chemistry , swelling , dispersion (optics) , lower critical solution temperature , catalysis , chemical engineering , colloid , belousov–zhabotinsky reaction , phase (matter) , chemistry , polymer , physics , composite material , organic chemistry , biochemistry , optics , quantum mechanics , engineering
Self‐oscillating microgels have been obtained by introducing a Ru catalyst for the Belousov–Zhabotinsky (BZ) reaction into a cross‐linked copolymer. In this microgel system, the chemical energy of the BZ reaction is converted to rhythmic swelling/deswelling with self‐flocculating/self‐dispersing oscillation of the microgel around its phase‐transition temperature (see scheme; Ru(bpy) 3 denotes a Ru tris‐bipyridine complex bearing a vinyl group).