Scandium-catalyzed stereoselective block and alternating copolymerization of diphenylphosphinostyrenes and isoprene

The coordination copolymerization of polar diphenylphosphinostyrenes and isoprene by (C 5 Me 4 SiMe 3 )Sc(CH 2 C 6 H 4 NMe 2 - o ) 2 afforded a new series of phosphine-functionalized alternating and block isoprene–styrene copolymers.