TY - GEN
T1 - Germanium- And tin-catalyzed living radical polymerizations of styrene
AU - Goto, Atsushi
AU - Zushi, Hirokazu
AU - Kwak, Yungwan
AU - Fukuda, Takeshi
PY - 2006
Y1 - 2006
N2 - Ge and Sn (non-transition-metal) catalyzed living radical polymerizations were developed. Low-polydispersity (Mw/Mn ∼ 1.1-1.2) polystyrenes with predicted molecular weights were obtained with a fairly high conversion in a fairly short time. The significant rate retardation observed for the GeI4 system with relatively large concentrations of GeI 4 was kinetically proved to be mainly due to the cross-termination between P* with GeI3*. Attractive features of the Ge and Sn catalysts include their high reactivity hence small amounts being required under a mild condition (at 60-80 °C) and high solubility in organic media without ligands. Ge catalysts may also be attractive for their low toxicity.
AB - Ge and Sn (non-transition-metal) catalyzed living radical polymerizations were developed. Low-polydispersity (Mw/Mn ∼ 1.1-1.2) polystyrenes with predicted molecular weights were obtained with a fairly high conversion in a fairly short time. The significant rate retardation observed for the GeI4 system with relatively large concentrations of GeI 4 was kinetically proved to be mainly due to the cross-termination between P* with GeI3*. Attractive features of the Ge and Sn catalysts include their high reactivity hence small amounts being required under a mild condition (at 60-80 °C) and high solubility in organic media without ligands. Ge catalysts may also be attractive for their low toxicity.
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U2 - 10.1021/bk-2006-0944.ch040
DO - 10.1021/bk-2006-0944.ch040
M3 - Conference contribution
AN - SCOPUS:34547174519
SN - 0841239916
SN - 9780841239913
T3 - ACS Symposium Series
SP - 595
EP - 603
BT - Controlled/Living Radical Polymerization from Synthesis to Materials
PB - American Chemical Society
ER -