TY - JOUR
T1 - Mechanistic aspects of 'living' free radical polymerization and initiation mediated by nitroxides
AU - Scaiano, JC
AU - Connolly, TJ
AU - Mohtat, N
AU - Pliva, CN
AU - Skene, W
AU - Belt, S
AU - Baldovi, MV
PY - 1997/1/1
Y1 - 1997/1/1
N2 - Polymers such as polystyrene, prepared in the presence of nitroxides such as TEMPO, behave as living or dormant polymers, capable of undergoing further polymer growth at temperatures (e.g. 120°C) under which the nitroxide cap can readily come off. This methodology is the subject of much current attention since it allows low polydispersity polymers to be prepared under conditions of free radical polymerization. Our studies have centered on the synthesis of novel initiators; mechanism of living free radical polymerization; possible role of acids; initiation by nitroxides; thermodynamics of bond cleavage; and possible photoinduced routes to living free radical polymerization. Laser techniques have proven very useful in the study of some of these processes.
AB - Polymers such as polystyrene, prepared in the presence of nitroxides such as TEMPO, behave as living or dormant polymers, capable of undergoing further polymer growth at temperatures (e.g. 120°C) under which the nitroxide cap can readily come off. This methodology is the subject of much current attention since it allows low polydispersity polymers to be prepared under conditions of free radical polymerization. Our studies have centered on the synthesis of novel initiators; mechanism of living free radical polymerization; possible role of acids; initiation by nitroxides; thermodynamics of bond cleavage; and possible photoinduced routes to living free radical polymerization. Laser techniques have proven very useful in the study of some of these processes.
M3 - Conference proceedings published in a journal
SN - 0743-0515
VL - 76
JO - Polymeric Materials Science and Engineering, Proceedings of the ACS Division of Polymeric Materials Science and Engineering
JF - Polymeric Materials Science and Engineering, Proceedings of the ACS Division of Polymeric Materials Science and Engineering
IS - 0
ER -