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Citation: Luo He-Kuan, Li Da-Gang, Kou Yuan. Ligand and Anion Effects of Palladium Catalyst for CO/Ethylene Copolymerization[J]. Acta Physico-Chimica Sinica, ;2000, 16(03): 273-277. doi: 10.3866/PKU.WHXB20000316 shu

Ligand and Anion Effects of Palladium Catalyst for CO/Ethylene Copolymerization

1.
Beijing Research Institute of Chemical Industry,Beijing 100013

Received Date: 24 June 1999
Available Online: 15 March 2000

Six complexes of two series were studied as the catalyst precursors for CO/ethylene copolymerization by using catalytic evaluation method and EXAFS technique. The first series of the complexes has general formular (L)Pd(OCOCF3)2 in which L is DPPPr, DPPBu or DPPEt. The second series of the complexes has general formular (DPPPr)Pd(A)2 in which A-is CF3COO-,P-CH3PhSO3-,Cl-or CH3COO-.The results showed that suitable ligands have relatively strong coordination ability to palladium(Ⅱ) center. Suitable anoins belonging to strong acids, have excellent stability on cationic palladium(Ⅱ),and easy to leave away to give coordination vacant to comonomers.
- Carbon monoxide,
- Ethylene,
- Polyketone,
- Palladium(II) catalyst,
- EXAFS
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