The influence of vanadium catalyst preparation method on butadiene polymerization

Authors
Monakov, YB Mullagaliev, IR Kil'Diyarov, AR Kharitonova, EY
Citation
Yb. Monakov et al., The influence of vanadium catalyst preparation method on butadiene polymerization, POLYM-PLAST, 40(5), 2001, pp. 753-765
Citations number
15
Categorie Soggetti
Material Science & Engineering
Journal title
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING
ISSN journal
03602559 → ACNP
Volume
40
Issue
5
Year of publication
2001
Pages
753 - 765
Database
ISI
SICI code
0360-2559(2001)40:5<753:TIOVCP>2.0.ZU;2-E
Abstract
The butadiene polymerization in toluene at 25 degreesC using a VOCl3-Al(iso -C4H9)(3) catalytic system was studied. The maximum of activity corresponde d to the ratio Al/V = 4.0. The polymer contained 90% 1,4-trans- and 10% 1,2 -units. The kinetic parameters of polymerization and molecular characterist ics of polybutadiene were determined, and they testify to the influence of catalytic complex preparation and polymerization conditions on them. It was suggested that there are several types of active centers that differ in ac tivity, stereospecificity of action. and stability.