【摘 要】
：
Two magnetic Fe3O4 nanoparticles supported[1,2] Cu(Ⅱ)-macromolecule complex catalysts were designed and empolyed as the catalyst for oxidative polymerization o
【机 构】
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GoldCatalysisResearchCenter&StateKeyLaboratoryofCatalysisDalianInstituteofChemicalPhysics,ChineseAca
【出 处】
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4th International Supramolecular System Symposium(ISSS2015)(
论文部分内容阅读
Two magnetic Fe3O4 nanoparticles supported[1,2] Cu(Ⅱ)-macromolecule complex catalysts were designed and empolyed as the catalyst for oxidative polymerization of DMP in water[3] in order to realize the recovery of catalyst.Hyperbranched poly(amidoamine) (PAMAM) and linear poly(N-vinylimidazole) PVI were immobilized on the nanoparticles using "grafting from"and "grafting to" approaches, respectively.The immobilized Cu(Ⅱ)-macromolecule complexes demonstrated excellent selectivity of C-O/C-C coupling and reactivity to form poly(2,6-dimethyl-1,4-phenylene ether) (PPE) and could be recovered by an external magnetic field and used repeatedly for the polymerization.Furthermore, the high catalytic efficiency of the catalysts could be ascribed to the concentration effect of macromolecules for both substrate and catalyst during the oxidative polymerization of DMP in aqueous medium[4-6].
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