Alternating ethylene-norbornene copolymerization catalyzed by cationic organopalladium complexes bearing hemilabile bidentate ligands of alpha-amino-pyridines

作者：Lin Ya Chi; Yu Kuo Hsuan; Huang Shou Ling; Liu Yi Hung; Wang Yu; Liu Shiuh Tzung; Chen Jwu Ting^*

来源：Dalton Transactions, 2009, (41): 9058-9067.

DOI：10.1039/b912068h

Cationic methylpalladium complexes with hemilabile bidentate ligands of a-amino-pyridines, in the form of {[(RHNCRH)-H-1-H-2(o-C6H5N)] Pd(Me)(NCMe)}(BF4) (R-1 = Pr-i, Bu-t, Ar R-2 = H, Me) have been found to be effective precursors for catalytic copolymerization of ethylene and norbornene under mild conditions. The copolymer products exhibit predominant alternating microstructures which are evidenced by NMR and mass spectrometry as well as a kinetic analysis according to the Finman-Ross relationship.

• 出版日期2009