Highly active Ziegler-Natta catalyst for propylene polymerization

Share/Save/Bookmark

Abedi, S. and Daftari-Besheli, Majid and Shafiei, S. (2005) Highly active Ziegler-Natta catalyst for propylene polymerization. Journal of Applied Polymer Science, 97 (40). pp. 1744-1749. ISSN 0021-8995

[img] PDF
Restricted to UT campus only
: Request a copy
230kB
Abstract:Polymerization of propylene was carried out by using a MgCl2-EtOH-TiCl4-ID-TEA-ED catalyst system in n-heptane, where ID (internal donor) was an organic diester, ED (external donor) was a silane compound, and TEA (triethyl aluminum) was the activator. The influences of temperature, pressure, time, hydrogen, and the molar ratios of Al/Ti and ED/Ti on polymer isotacticity and catalyst activity were studied by solubility in boiling n-heptane and measuring the polymer produced, respectively. The morphology of the polymers was evaluated through scanning electron microscopy and particle size distribution. The rheological properties of the poly(propylene) were determined by the melt flow index. It was found that the catalyst showed good morphology and high activity and also the produced polymers were characterized by high isotacticity and globulelike shapes.
Item Type:Article
Copyright:© 2005 Wiley
Research Group:
Link to this item:http://purl.utwente.nl/publications/61494
Official URL:http://dx.doi.org/10.1002/app.21906
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page

Metis ID: 230187