Stereospecific polymerization of higher α‐olefins with the solvay type catalyst TiCl₃/Cp₂Ti(CH₃)₂

Abstract

Abstract Polymerizations of higher α ‐olefins (C 10 –C 20 ) were carried out at 40°C in heptane, using the following three catalysts which differ in the isospecificity for propene polymerization: Solvay type TiCl 3 /Cp 2 TiMe 2 ((A) highly isospecific), Solvay type TiCl 3 /AlEt 3 ((B) isospecific) and TiCl 3 .3Py/MgCl 2 /AlEt 3 ((C) aspecific). The isospecificity of the catalysts was found to decrease in the following order: (A) ≫ (B) ≫ (C), which agrees well with the results obtained in propene polymerization. The crystallinity of these polymers is discussed in brief.