TY - JOUR
T1 - Synthesis and characterization of metallo-supramolecular micelles
AU - Gohy, J.M.W.
AU - Lohmeijer, B.G.G.
AU - Decamps, B.
AU - Leroy, E.
AU - Boileau, S.
AU - Broek, van den, J.A.
AU - Schubert, D.
AU - Haase, W.
AU - Schubert, U.S.
PY - 2003
Y1 - 2003
N2 - Two different metallo-supramol. amphiphilic block copolymers have been synthesized, using a hydrophilic poly(ethylene oxide) block connected through a bis-(2,2':6'2''-terpyridine-ruthenium) complex either to a hydrophobic polystyrene or to a poly(ethylene-co-butylene) block. These copolymers were used to prep. aq. micelles. The morphol. characterization of the metallo-supramol. micelles was performed by dynamic light scattering and transmission electron microscopy. Besides individual micelles, larger structures were also obsd. by these two independent techniques. The larger structures were the result of aggregation of individual micelles. In addn., the influence of the ionic strength of the medium was investigated. Although the metallo-supramol. copolymers do not contain charged blocks, the corresponding micelles behaved as polyelectrolyte-like micelles. This behavior was attributed to the presence of NaCl ions, strongly assocd. to the poly(ethylene oxide) blocks. This was evidenced by transmission electron microscopy, that revealed the presence of the salt in the metallo-supramol. micelles. [on SciFinder (R)]
AB - Two different metallo-supramol. amphiphilic block copolymers have been synthesized, using a hydrophilic poly(ethylene oxide) block connected through a bis-(2,2':6'2''-terpyridine-ruthenium) complex either to a hydrophobic polystyrene or to a poly(ethylene-co-butylene) block. These copolymers were used to prep. aq. micelles. The morphol. characterization of the metallo-supramol. micelles was performed by dynamic light scattering and transmission electron microscopy. Besides individual micelles, larger structures were also obsd. by these two independent techniques. The larger structures were the result of aggregation of individual micelles. In addn., the influence of the ionic strength of the medium was investigated. Although the metallo-supramol. copolymers do not contain charged blocks, the corresponding micelles behaved as polyelectrolyte-like micelles. This behavior was attributed to the presence of NaCl ions, strongly assocd. to the poly(ethylene oxide) blocks. This was evidenced by transmission electron microscopy, that revealed the presence of the salt in the metallo-supramol. micelles. [on SciFinder (R)]
U2 - 10.1002/pi.1348
DO - 10.1002/pi.1348
M3 - Article
VL - 52
SP - 1611
EP - 1618
JO - Polymer International
JF - Polymer International
SN - 0959-8103
IS - 10
ER -