Khodeir, Miriam; Jia, He; Vlad, Alexandru; Gohy, Jean-Francois published an article in 2021, the title of the article was Application of redox-responsive hydrogels based on 2,2,6,6-tetramethyl-1-piperidinyloxy methacrylate and oligo(ethyleneglycol) methacrylate in controlled release and catalysis.Reference of Oxybis(ethane-2,1-diyl) bis(2-methylacrylate) And the article contains the following content:
Hydrogels have reached momentum due to their potential application in a variety of fields including their ability to deliver active mols. upon application of a specific chem. or phys. stimulus and to act as easily recyclable catalysts in a green chem. approach. In this paper, we demonstrate that the same redox-responsive hydrogels based on polymer networks containing 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) stable nitroxide radicals and oligoethylene glycol Me ether methacrylate (OEGMA) can be successfully used either for the electrochem. triggered release of aspirin or as catalysts for the oxidation of primary alcs. into aldehydes. For the first application, we take the opportunity of the pos. charges present on the oxoammonium groups of oxidized TEMPO to encapsulate neg. charged aspirin mols. The further electrochem. reduction of oxoammonium groups into nitroxide radicals triggers the release of aspirin mols. For the second application, our hydrogels are swelled with benzylic alc. and tert-Bu nitrite as co-catalyst and the temperature is raised to 50°C to start the oxidation reaction. Interestingly enough, benzaldehyde is not miscible with our hydrogels and phase-sep. on top of them allowing the easy recovery of the reaction product and the recyclability of the hydrogel catalyst. The experimental process involved the reaction of Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)(cas: 2358-84-1).Reference of Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)
The Article related to tetramethyl piperidinyloxy oligo ethyleneglycol methacrylate hydrogel catalysis, tempo, catalysis, encapsulation-release, hydrogels, redox-responsive polymers, Catalysis, Reaction Kinetics, and Inorganic Reaction Mechanisms: Catalytic Reactions and other aspects.Reference of Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)
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