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2347887 
Journal Article 
MgCl2-Supported Ziegler-Natta Catalyst Containing Dibenzoyl Sulfide Donor for Propylene Polymerization 
Kim, G; Um, BH; Son, KiC; Oh, K; Koh, H 
2014 
Yes 
Journal of Applied Polymer Science
ISSN: 0021-8995
EISSN: 1097-4628 
131 
18 
40743-40743 
WOS:000337623600005 
Polypropylene (PP) was synthesized in the presence of Ziegler-Natta catalysts composed of MgCl2-TiCl4-internal donor/AlR3-external donor. Diisobutyl phthalate is a well-known internal donor in current PP production. Nevertheless, phthalates are often blamed as endocrine disruptors. The objective is to find an ecofriendly internal donor producing PP with maintaining its physical properties. When using dibenzoyl sulfide, synthesized PP shows the superiority to diisobutyl phthalate in the activity of catalyst (40 vs. 22 kg PP/g catalyst), the isotacticity of polymer (99.5 vs. 98.0 wt % of heptane insolubles), and the molecular weight distribution of PP product (M-w/M-n = 4.8 vs. 4). (C) 2014 Wiley Periodicals, Inc. 
catalysts; polyolefins; property relations; structure 
IRIS
• Diisobutyl Phthalate (DIBP) Final
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