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- W3192242015 endingPage "2566" @default.
- W3192242015 startingPage "2566" @default.
- W3192242015 abstract "The development process of catalytic core/shell microreactors, possessing a poly(ethylene glycol) (PEG) core and a polyurea (PU) shell, by implementing an emulsion-templated non-aqueous encapsulation method, is presented. The microreactors’ fabrication process begins with an emulsification process utilizing an oil-in-oil (o/o) emulsion of PEG-in-heptane, stabilized by a polymeric surfactant. Next, a reaction between a poly(ethylene imine) (PEI) and a toluene-2,4-diisocyanate (TDI) takes place at the boundary of the emulsion droplets, resulting in the creation of a PU shell through an interfacial polymerization (IFP) process. The microreactors were loaded with palladium nanoparticles (NPs) and were utilized for the hydrogenation of alkenes and alkynes. Importantly, it was found that PEG has a positive effect on the catalytic performance of the developed microreactors. Interestingly, besides being an efficient green reaction medium, PEG plays two crucial roles: first, it reduces the palladium ions to palladium NPs; thus, it avoids the unnecessary use of additional reducing agents. Second, it stabilizes the palladium NPs and prevents their aggregation, allowing the formation of highly reactive palladium NPs. Strikingly, in one sense, the suggested system affords highly reactive semi-homogeneous catalysis, whereas in another sense, it enables the facile, rapid, and inexpensive recovery of the catalytic microreactor by simple centrifugation. The durable microreactors exhibit excellent activity and were recycled nine times without any loss in their reactivity." @default.
- W3192242015 created "2021-08-16" @default.
- W3192242015 creator A5035392258 @default.
- W3192242015 creator A5059319214 @default.
- W3192242015 creator A5091868414 @default.
- W3192242015 date "2021-07-31" @default.
- W3192242015 modified "2023-10-02" @default.
- W3192242015 title "Preparation of Poly(ethylene glycol)@Polyurea Microcapsules Using Oil/Oil Emulsions and Their Application as Microreactors" @default.
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- W3192242015 doi "https://doi.org/10.3390/polym13152566" @default.
- W3192242015 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8348332" @default.
- W3192242015 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34372169" @default.
- W3192242015 hasPublicationYear "2021" @default.