Allylbenzene was polymerized in the presence of two types of homogeneous zi
rconocene catalysts (co-catalyst methylaluiminoxane). Selective chain termi
nation through beta-hydride elimination or chain transfer to aluminum was o
bserved depending upon the catalysts employed. The rac-Et(Ind)(2)ZrCl2, and
rac-Me2Si(Ind)(2)ZrCl2, catalysts gave the polyallylbenzenes with saturate
d end groups due to chain transfer to aluminum, while the Cp2ZrCl2 catalyst
gave the polyallylbenzenes with vinylidene end groups due to beta-hydride
elimination.