引用本文:
罗河宽, 李达刚, 寇元. 钯催化CO/乙烯共聚配体和阴离子效应[J]. 物理化学学报,
2000, 16(03): 273-277.
doi:
10.3866/PKU.WHXB20000316
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
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
English
Ligand and Anion Effects of Palladium Catalyst for CO/Ethylene Copolymerization
Abstract:
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.
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Key words:
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Carbon monoxide
- / Ethylene
- / Polyketone
- / Palladium(II) catalyst
- / EXAFS
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