催化作用
铃木反应
钯
聚合物
水溶液
丙烯酰胺
纳米颗粒
偶联反应
溶剂
胶体
高分子化学
色散(光学)
化学工程
材料科学
化学
共聚物
纳米技术
有机化学
工程类
物理
光学
作者
Robina Begum,Zahoor H. Farooqi,Jianliang Xiao,Ejaz Ahmed,Ahsan Sharif,Ahmad Irfan
标识
DOI:10.1016/j.molliq.2021.116780
摘要
Acrylamide and N-isopropylacrylamide were copolymerized in the presence of a N,N-methylenebisacrylamide crosslinker to obtain poly(N-isopropylacrylamide-co-acrylamide) [P(NA)] polymer colloidal particles. Pd nano crystals with diameter of 4–8 nm were loaded into the [P(NA)] microgels by reduction of [PdCl4]-2 within dispersion of polymer microgels. The Pd NPs-loaded hybrid microgels were analysed by TEM, STEM, EDX and XRD. The catalytic ability of the Pd-[P(NA)] system was investigated towards reductive transformation of nitroarenes into corresponding aryl amines and Suzuki coupling transformation in a green solvent, H2O. The progress of catalytic reaction was examined by thin layer chromatography (TLC). Different reactants were effectively converted into their corresponding products with great to fabulous yields (extending from 75 to 97%) under gentle reaction conditions. The Pd-[P(NA)] catalyst is stable for long time and can be utilized numerous times without any notable loss in its catalytic action.
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