WebDec 1, 2001 · Since isocyanates could react simultaneously with phenols, oximes, alcohols, thiols and amines at trace levels, they could become new general derivatization reagents for these pollutants (carbamate pesticide family). WebJun 25, 2010 · The thiol-isocyanate reaction was completed within 1 min while the thiol-acrylate Michael addition reaction required ∼10 min. Both thiol-isocyanate coupling and thiol-acrylate Michael addition reactions involving two-step anionic processes were found to be both quantitative and efficient. However, the thiol-isocyanate coupling reaction was ...
The Royal Society of Chemistry
WebThe kinetics of the polythiourethane network formation investigated using real-time infrared indicates that the thiol–isocyanate coupling reaction was successfully triggered … WebNov 15, 2016 · Herein, we develop a one-step dispersion polymerization based on thiol-isocyanate reaction to prepare such particles. This polymerization proceeds energy-efficiently at ambient temperature without additional catalyst/initiator or UV treatment, achieves high monomer conversion and has little side reaction. university of southern indiana business
Sequential Thiol Click Reactions: Formation of Ternary …
WebAs strong nucleophiles, thiols add readily to activated (electron-poor) enes, such as maleimides, acrylates, 330,331 or vinylsulfones forming thioethers, and to isocyanates forming thioureas. 332–334 Nonaromatic isocyanates have been shown to react at a slower rate than phenyl isocyanate. 15 For the thiol-Michael addition to activated enes ... WebFeb 26, 2014 · We report the physical properties of thiol–ene networks modified with thiourethane or urethane linkages, either along the main chain or as a branched component in the network, respectively. Because of the robust and orthogonal nature of thiol-isocyanate and thiol–ene reactions, these networks can be formed in a two-step, one-pot synthesis. … WebThe thiol-isocyanate reaction is fast and proceeds readily without any side product even in the presence of water, alcohol, or amines. The most common base used for this reaction … university of southern indiana classes