Abstract
At various temperatures, real time FTIR analysis was introduced to monitor the kinetics of the uncatalyzed Huisgen 1,3-dipolar azide-alkyne cycloaddition (AAC) without media, resulting in in situ robust polymeric networks crosslinked with triazoles at chain-ends. Second-order kinetic analysis was used to determine the rate constants for uncatalyzed AAC reaction. Electron-deficient alkynes carrying an α-carbonyl undergo a fast Huisgen reaction within a few hours without any catalysts, proportional to the temperature. Less electron-deficient alkynes led to the decrease of AAC reaction rate significantly, revealing that the AAC reaction rate depends on the molecular structure of alkynes center
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Min, B.S., Kim, S.Y. Kinetics of in situ robust chain-ends crosslinked polymeric networks formed using catalyst- and solvent-free Huisgen cycloaddition reaction. Macromol. Res. 25, 249–254 (2017). https://doi.org/10.1007/s13233-017-5038-4
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DOI: https://doi.org/10.1007/s13233-017-5038-4