Organolanthanides as single component homogeneous catalysts for isoprenehex—1-ene co-polymerisation

Abstract Bisallylansalanthanide complexes act as single component catalysts of diene polymerisation; from an equimolar mixture of isoprene and hex-1-ene, a co-polymer hex-1-ene/isoprene = 1:10 is obtained, this copolymer is essentially formed of 1,4- trans polyisoprene blocks separated by only one inserted hexyl group.