Abstract

β-Iminophosphonamide ligated lanthanum bis(benzyl) complex (NPNDipp)La(CH2Ph-4-Me)2(THF) (NPNDipp = Ph2P(NC6H3iPr2-2,6)2), upon activation of AlEt3 and [Ph3C][B(C6F5)4], exhibited high catalytic activity and high trans-1,4 stereoselectivity for the polymerization of bio-sourced β-myrcene (MY). Based on which, a series of novel trans-1,4 regulated elastomers could be generated by random/block copolymerization of MY and isoprene (IP).

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