THERMAL AND X-RAY-INVESTIGATIONS OF ETHYLENE-ALPHA-OLEFIN COPOLYMERS OBTAINED WITH HIGHLY-ACTIVE SUPPORTED TI-MG AND V-MG CATALYSTS

Authors
ECHEVSKAYA LG ZAKHAROV VA MARATHE S SEHRA JC JOG JP SIVARAM S
Citation
Lg. Echevskaya et al., THERMAL AND X-RAY-INVESTIGATIONS OF ETHYLENE-ALPHA-OLEFIN COPOLYMERS OBTAINED WITH HIGHLY-ACTIVE SUPPORTED TI-MG AND V-MG CATALYSTS, Polymer international, 33(1), 1994, pp. 111-114
Citations number
18
Categorie Soggetti
Polymer Sciences
Journal title
Polymer international → ACNP
ISSN journal
09598103
Volume
33
Issue
1
Year of publication
1994
Pages
111 - 114
Database
ISI
SICI code
0959-8103(1994)33:1<111:TAXOEC>2.0.ZU;2-U
Abstract
Copolymers of ethylene with propylene, butene-l and hexene-l were prep ared using a titanium-magnesium (TMC) or a vanadium-magnesium catalyst (VMC). The copolymers were examined for thermal stability by TGA, mel ting and crystallization behaviour by DSC and crystallinity by XRD. Fr actionated samples of ethylene-hexene-1 copolymers were also similarly characterized. Results indicate that VMC produces copolymers with a h igher degree of crystallinity and greater compositional homogeneity th an TMC.