Palladium Aryl Sulfonate Phosphine Catalysts for the Copolymerization of Acrylates with Ethene
Palladium Aryl Sulfonate Phosphine Catalysts for the Copolymerization of Acrylates with Ethene
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DOI：
10.1002/marc.200700370
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发表时间：
2007-10
影响因子：
4.6
通讯作者：
K. Skupov;P. Marella;M. Simard;G. Yap;N. T. Allen;D. Conner;B. Goodall;J. Claverie
中科院分区：
文献类型：
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作者：
K. Skupov;P. Marella;M. Simard;G. Yap;N. T. Allen;D. Conner;B. Goodall;J. Claverie
2-[双(2-甲氧基苯基)膦酰基]-4-甲基-苯磺酸 (a) 和 2-[双(2',6'-二甲氧基联苯-2-基)膦酰基]苯磺酸 (b) 与二甲基(N,N,N',N'-四甲基乙二胺)-钯(II) (PdMe 2 (TMEDA)) 反应生成 TMEDA桥联钯基聚合cat-CO 2 R催化剂（1a和1b）。与吡啶反应后，形成两种单核催化剂（2a 和 2b）。这些催化剂能够使乙烯均聚，也能够使乙烯与丙烯酸酯或与降冰片烯共聚。使用配体 b，可以高产率形成高分子量聚合物，但使用配体 a 可以获得更高的共聚单体掺入量。
The reaction of 2-[bis(2-methoxy-phenyl)phosphanyl]-4-methyl-benzenesulfonic acid (a) and 2-[bis(2',6'-dimethoxybiphenyl-2-yl)phosphanyl]benzenesulfonic acid (b) with dimethyl(N,N, N',N'-tetramethylethylenediamine)-palladium(II) (PdMe 2 (TMEDA)) leads to the formation of TMEDA bridged palladium based polymerization cat- CO 2 R alysts (la and 1b). Upon reaction with pyridine, two mononuclear catalysts are formed (2a and 2b). These catalysts are able to homopolymerize ethylene and also copolymerize ethylene with acrylates or with norbornenes. With ligand b, high molecular weight polymers are formed in high yields, but higher comonomer incorporations are obtained with ligand a.