Self-switchable polymer reactor with PNIPAM-PAm smart switch capable of tandem/simple catalysis

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dc.contributor.authorWei, Wenjing
dc.contributor.authorThakur, Vijay Kumar
dc.contributor.authorLi, Songjun
dc.contributor.authorChianella, Iva
dc.date.accessioned2021-10-18T10:57:32Z
dc.date.available2021-10-18T10:57:32Z
dc.date.issued2021-10-11
dc.description.abstractIn this paper, we report a novel three-layer polymer reactor capable of simple/tandem self-controlled catalysis. The top and bottom layers were composed of two different molecularly imprinted polymers respectively containing two catalytic sites (an acidic site catalyzing hydrolysis and metal nanoparticles catalyzing reduction), performing two selective tandem reactions without interference between each other. The middle layer was composed of a copolymer of poly-N-isopropylacrylamide (PNIPAM) and polyacrylamide (PAm) in different ratio, acting as a temperature-responsive switch for the tandem catalysis process. In an aqueous environment, when the temperature is lower than the Lower Critical Solution Temperature (LCST) of the copolymer, the reactor exhibited an open middle access (hydrophilic condition) of intermediate, allowing the tandem processes from hydrolysis to reduction. When the temperature is higher than the LCST, the channels of the middle layer were closed (hydrophobic condition), which obstructed the access of reactants. As a result, the reactor could only conduct simple hydrolysis processes. Therefore, with the three-layer structure, the polymer reactor has led to a self-controlled catalysis. This new multi-layer polymeric reaction concept can expand the practical use of functional catalysts by permitting the control of processes in large temperature ranges.en_UK
dc.identifier.citationWei W, Kumar Thakur V, Li S, Chianella I. (2021) Self-switchable polymer reactor with PNIPAM-PAm smart switch capable of tandem/simple catalysis. Polymer, Volume 235, November 2021, Article number 124265en_UK
dc.identifier.issn0032-3861
dc.identifier.urihttps://doi.org/10.1016/j.polymer.2021.124265
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/17180
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectTemperature-responsive polymeren_UK
dc.subjectTandem catalysisen_UK
dc.subjectLCSTen_UK
dc.subjectSmart catalysisen_UK
dc.titleSelf-switchable polymer reactor with PNIPAM-PAm smart switch capable of tandem/simple catalysisen_UK
dc.typeArticleen_UK

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