【作者】 温昕； 褚海龙； 刘辰； 白国义；

【Author】 Xin Wen;Hailong Chu;Chen Liu;Guoyi Bai;College of Chemistry and Environmental Science, Hebei University;Hebei Chemical and Pharmaceutical College;

【机构】 河北大学化学与环境科学学院； 河北化工医药职业技术学院；

【摘要】 <正>本文制备了一类烷基修饰的超支化聚(酰胺-酯)(HP)和N,N-二甲基甲酰胺(DMF)共稳定的钯纳米粒子(HP-DMF/PdNPs),并以NaBH4为还原剂以4-硝基苯酚为4-氨基苯酚为模型反应在二氯甲烷/水两相体系中测试了HP-DMF/PdNPs的催化活性和稳定性。实验证明较高浓度聚合物稳定的PdNPs,在二氯甲烷中的稳定性好,同时在模型反应中循环套用10次仍保持较高的催化活性,且在室温储存35天后,其催化活性无更多还原

【Abstract】 A series of PdNPs co–stabilized by alkyl modified hyperbranched poly(amide-ester)(HP) and N,N–dimethylformamide(HP-DMF/Pd) were prepared and the catalytic performance were tested by the reduction of 4–nitrophenol to 4–aminophenol in the organic/aqueous biphasic solution. It was found that high concentration hyperbranched polymer improved their organic solubility, accounting for their good activity and stability in the organic/aqueous biphasic solution. Notably, the co-stabilized PdNPs exhibited good catalytic performance even after a 35 days storage period.更多还原