TY - JOUR
T1 - Syndiotactic poly(propene-co-norbornene)
T2 - Synthesis and properties at low norbornene incorporation
AU - Vanegas, Ma Eulalia
AU - Quijada, Raúl
AU - Galland, Griselda B.
PY - 2010/9
Y1 - 2010/9
N2 - Copolymerizations of propene with norbornene were carried out using a syndiotactic metallocene catalyst at low initial comonomer concentrations for different polymerization times. The influence of the norbornene concentration on the catalytic activity and on the resulting material properties has been analyzed. The copolymer molecular weight decreased drastically when small amounts of norbornene were added in reactions which lasted 30 min. When longer reaction times were used the molecular weight increased with time, however living polymerization was ruled out because the polydispersity was ca. 2. The DSC measurements showed copolymers with low crystallinity or which were completely amorphous.
AB - Copolymerizations of propene with norbornene were carried out using a syndiotactic metallocene catalyst at low initial comonomer concentrations for different polymerization times. The influence of the norbornene concentration on the catalytic activity and on the resulting material properties has been analyzed. The copolymer molecular weight decreased drastically when small amounts of norbornene were added in reactions which lasted 30 min. When longer reaction times were used the molecular weight increased with time, however living polymerization was ruled out because the polydispersity was ca. 2. The DSC measurements showed copolymers with low crystallinity or which were completely amorphous.
KW - Poly(propene-co-norbornene)
KW - Syndiotactic metallocene
KW - Thermal properties
UR - https://www.scopus.com/pages/publications/77956610756
U2 - 10.1016/j.polymer.2010.06.063
DO - 10.1016/j.polymer.2010.06.063
M3 - Artículo
AN - SCOPUS:77956610756
SN - 0032-3861
VL - 51
SP - 4627
EP - 4631
JO - Polymer
JF - Polymer
IS - 20
ER -