Juniper publishers- Academic Journal of Polymer
Science
Authored
by Inho Nam
Microdroplet Chemistry: Difference of Organic Reactions between Bulk Solution and Aqueous Microdroplets
Recent applications of microdroplet reactions are noted as reaction acceleration in confined environments and possible future scale-up synthesis compare to that of bulk phase reactions. Microdroplet reactions overcome the thermodynamic and kinetic challenges in an aqueous solution. Due to the microdroplet’s distinctive surface environment, the chemistry in Microdroplets significantly differs from that in the bulk solution. Remarkable findings intrigued people in different fields by showing that extremely slow bulk phase reactions can be accelerated dramatically in aqueous microdroplets [1,2]. Not only the rate of the reaction but also the yields of reaction increased due to negative free-energy change which is lower than the value in the bulk phase. Recent experiments have been done by several groups and they validated how microdroplet reactions enable to accelerate organic reactions such as addition reactions [3], condensation reactions [4,5], elimination reactions [2], substitution reactions [2], redox reactions [6], rearrangement reactions [7], and noncovalent complexations [8]. In this mini-review, we show the recent progress about the kinetic and thermodynamic change of organic reactions in aqueous microdroplets, as names as microdroplet chemistry, and its limitation.
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