TY - JOUR
T1 - Star-branched polystyrenes by nitroxide living free-radical polymerization
AU - Tsoukatos, Thodoris
AU - Pispas, Stergios
AU - Hadjichristidis, Nikolaos
PY - 2001/1/15
Y1 - 2001/1/15
N2 - Star-branched polystyrenes, with polydispersity indices of 1.15-1.56 and 4-644 equal arms, were synthesized by the reaction of 2,2,6,6-tetramethylpiperidin-1-yloxy (TEMPO)-capped polystyrene (PS-T) with divinylbenzene (DVB). The characterization of PS-T and the final star polymers was carried out by size exclusion chromatography, low-angle laser light scattering, and viscometry. The degree of branching of the star polymers depended on the DVB/PS-T ratio and the PS-T molecular weight. An asymmetric (or miktoarm) star homopolymer of the PSnPS′n type was made by the reaction of the PSn symmetric star, which had n TEMPO molecules on its nucleus and consisted of a multifunctional initiator, with extra styrene.
AB - Star-branched polystyrenes, with polydispersity indices of 1.15-1.56 and 4-644 equal arms, were synthesized by the reaction of 2,2,6,6-tetramethylpiperidin-1-yloxy (TEMPO)-capped polystyrene (PS-T) with divinylbenzene (DVB). The characterization of PS-T and the final star polymers was carried out by size exclusion chromatography, low-angle laser light scattering, and viscometry. The degree of branching of the star polymers depended on the DVB/PS-T ratio and the PS-T molecular weight. An asymmetric (or miktoarm) star homopolymer of the PSnPS′n type was made by the reaction of the PSn symmetric star, which had n TEMPO molecules on its nucleus and consisted of a multifunctional initiator, with extra styrene.
UR - http://www.scopus.com/inward/record.url?scp=0035151214&partnerID=8YFLogxK
U2 - 10.1002/1099-0518(20010115)39:2<320::AID-POLA80>3.0.CO;2-N
DO - 10.1002/1099-0518(20010115)39:2<320::AID-POLA80>3.0.CO;2-N
M3 - Article
AN - SCOPUS:0035151214
SN - 0887-624X
VL - 39
SP - 320
EP - 325
JO - Journal of Polymer Science, Part A: Polymer Chemistry
JF - Journal of Polymer Science, Part A: Polymer Chemistry
IS - 2
ER -