naa a22 4500 510821650 CHVBK 20180411083535.0 cr unu---uuuuu 180411e20131101xx s 000 0 eng 10.1007/s11814-013-0150-4 doi (NATIONALLICENCE)springer-10.1007/s11814-013-0150-4 Silver nanoparticles containing hybrid polymer microgels with tunable surface plasmon resonance and catalytic activity [Elektronische Daten] [Muhammad Ajmal, Zahoor Farooqi, Mohammad Siddiq] Multi-responsive poly(N-isoprpylacrlamide-methacrylic acid-acrylamide) [P(NIPAM-MAA-AAm)] copolymer microgel was prepared by free radical emulsion polymerization. Silver nanoparticles were fabricated inside the microgel network by in-situ reduction of silver nitrate. Swelling and deswelling behavior of the pure microgels was studied under various conditions of pH and temperature using dynamic light scattering. A red shift was observed in surface plasmon resonance wavelength of Ag nanoparticles with pH induced swelling of hybrid microgel. The catalytic activity of the hybrid system was investigated by monitoring the reduction of p-nitrophenol under different conditions of temperature and amount of catalysts. For this catalytic reaction a time delay of 8 to 10min was observed at room temperature, which was reduced to 2 min at high temperature due to swelling of microgels, which facilitated diffusion of reactants to catalyst surface and increased rate of reaction. Korean Institute of Chemical Engineers, Seoul, Korea, 2013 Microgels nationallicence Nanoparticles nationallicence Swelling nationallicence Catalysis nationallicence p-Nitrophenol nationallicence Ajmal Muhammad Department of Chemistry, Quaid-I-Azam University, 45320, Islamabad, Pakistan aut Farooqi Zahoor Institute of Chemistry, University of the Punjab, 54590, New Campus Lahore, Pakistan aut Siddiq Mohammad Department of Chemistry, Quaid-I-Azam University, 45320, Islamabad, Pakistan aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/11(2013-11-01), 2030-2036 0256-1115 30:11<2030 2013 30 11814 https://doi.org/10.1007/s11814-013-0150-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-013-0150-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ajmal Muhammad Department of Chemistry, Quaid-I-Azam University, 45320, Islamabad, Pakistan aut NATIONALLICENCE 700 1- Farooqi Zahoor Institute of Chemistry, University of the Punjab, 54590, New Campus Lahore, Pakistan aut NATIONALLICENCE 700 1- Siddiq Mohammad Department of Chemistry, Quaid-I-Azam University, 45320, Islamabad, Pakistan aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/11(2013-11-01), 2030-2036 0256-1115 30:11<2030 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer