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Temperature‐responsive catalytic performance of Ag nanoparticles endowed by poly ( N ‐isopropylacrylamide‐ co ‐acrylic acid) microgels
Author(s) -
Li Kun,
Chen Xi,
Wang Zeya,
Xu Liangliang,
Fu Weigui,
Zhao Lizhi,
Chen Li
Publication year - 2017
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.23630
Subject(s) - materials science , catalysis , acrylic acid , x ray photoelectron spectroscopy , nanoparticle , transmission electron microscopy , silver nanoparticle , fourier transform infrared spectroscopy , poly(n isopropylacrylamide) , copolymer , scanning electron microscope , chemical engineering , polymer chemistry , composite material , polymer , nanotechnology , chemistry , organic chemistry , engineering
In this study, we facilely introduce silver nanoparticles into Poly( N ‐isopropylacrylamide‐ co ‐acrylic acid)(Poly(NIPAM‐ co ‐AA)) microgels and specially focus on the effect of hydrophilic acrylic acid segments on the responsive catalytic performance of silver nanoparticles. The obtained Poly(NIPAM‐ co ‐AA)/AgNPs composites are characterized by Fourier transform infrared spectra, X‐ray diffraction, X‐ray photoelectron spectroscopy, and transmission electron microscopy. The composites as catalysts are applied to the hydrogenation reaction of p ‐nitrophenol and the related conditions such as reaction temperature, concentration of p ‐nitrophenol, and the loadings of Ag nanoparticles are studied in detail. NIPAM segments of composites conveniently give silver nanoparticles a controllable characteristic for catalytic reaction by their conformation variation. AA segments of composites not only provide good stability and dispersibility for silver nanoparticles but also favor an easier diffusion of p ‐nitrophenol to Ag NPs. POLYM. COMPOS., 38:708–718, 2017. © 2015 Society of Plastics Engineers