Abstract
A temperature responsive smart catalytic system based on SBA-15/poly(N,N-dimethylaminoethylmethacrylate) decorated with gold nanoparticles (NPs) was prepared. The surface graft polymerization of 2-dimethylaminoethyl methacrylate on well-structured mesoporous silica NPs was done by atom transfer radical polymerization technique in aqueous alcohol media. In situ generation of gold NPs was achieved in controlled condition. The catalytic activity was evaluated by monitoring the reduction reaction of 4-nitrophenol at various temperatures. The catalytic activity of the NPs showed a deviance from the expected Arrhenius trend at different temperatures. Above the cloud point of the grafted polymer at a given pH condition, the rate constant of the catalytic reaction dropped sharply due to shrinkage of the polymer and transition to hydrophobic state.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
