Abstract
Catalysts based on TiCl 3 modlfied by di-n-butyl ether (DBE) as internal base were synthesized with the aim to obtain polypropylene particles of controlled morphology. Two routes here used to synthesize the catalysts (System A and System B). In System A, DBE employed as internal base has complexed with TiCl 4 and diethylaluminum chloride (DEAC) in iso-octane solution and in System B, DBE has complexed with triethylaluminum (TEA) and TiCl 3 in toluene solution. The catalysts here evaluated in propylene polymerization and the polymer morphology has characterized by optical and scanning electron microscopies, bulk density and particle size distribution
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