Styrene polymerization in the presence of the CpTiCl3/Al2O3–SiO2/MAO catalytic system

✍ Scribed by Dariusz Jamanek; Anna Woyda; Wincenty Skupiński

• Publisher: John Wiley and Sons
• Year: 2002
• Tongue: English
• Weight: 106 KB
• Volume: 16
• Category: Article
• ISSN: 0268-2605
• DOI: 10.1002/aoc.344

✦ Synopsis

Syndiotactic polymerization of styrene in the presence of heterogenized hemititanocene catalysts CpTiCl 3 /Al 2 O 3 ±SiO 2 /MAO (Cp = cyclopentadienyl; MAO = methylaluminoxane) showed that the yield and selectivity of this reaction depend on the support composition, i.e. on the Al 2 O 3 content in the support. The most active catalysts contained Al 2 O 3 in a quantity of 50 to 70 wt%. Despite a relatively lower selectivity of 75±59%, the amount of syndiotactic polystyrene in the presence of those catalysts was the greatest.