Homo- and copolymerizaton of norbornene and norbornene derivative with Ni- and Pd-based β-ketoiminato complexes and MAO

被引：0
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作者：
Wang, Ling Yun [1 ]
Li, Yong Fei [1 ]
Zhu, Fang Ming [1 ]
Wu, Qing [1 ]
机构：
[1] Institute of Polymer Science, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
来源：
European Polymer Journal | 2006年 / 42卷 / 02期
关键词：
Neutral nickel(II) and palladium(II) complexes bearing β-ketoiminato ligand have been synthesized. The two complexes have been investigated as catalyst for the polymerization. Using methylaluminoxane (MAO) as a cocatalyst; both complexes produce vinyl-addition polynorbornenes; but palladium(II) complex displays much higher activity up to 8.0 × 107 g/(molPd h). Furthermore; both Ni(II) and Pd(II)/MAO system can efficiently copolymerize norbornene and 5-norbornene-2-yl acetate (NB-OCOMe) in moderate yields and in relatively high molecular weights. The analyses of the product by FTIR; 1H NMR and 13C NMR spectra give the verification of vinyl addition copolymer. The copolymers show narrow molecular weight distribution and good solubility in common organic solvents. © 2005 Elsevier Ltd. All rights reserved;
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页码：322 / 327
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