Synthetic Route of 41203-22-9, A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 41203-22-9, Name is 1,4,8,11-Tetramethyl-1,4,8,11-tetraazacyclotetradecane, molecular formula is C14H32N4. In a Article£¬once mentioned of 41203-22-9
Understanding copper-based atom-transfer radical polymerization in aqueous media
This study investigates the mechanism of copper(I)-mediated “living” atom-transfer radical polymerization (ATRP) in aqueous media. It is shown that the ATRP apparent rate constant for polymerization of methoxy-capped oligo(ethylene glycol) methacrylate (OEGMA) in water (k papp) at room temperature correlates with the redox potential (E1/2) of the copper complexes. The results are discussed along with previously published results on the kinetics for bulk polymerization of methyl acrylate at 60 C with the redox potentials measured in MeCN. The faster ATRP kinetics in water can mainly be attributed to a higher equilibrium concentration of propagating radicals [R.] and to solvent effects on the rate of propagation kp. It is shown that [R.] can be calculated from the redox properties of the alkyl halide and the copper complex. The values of [R.] in MeCN/ bulk and in H2O were determined to be 8.2 ¡Á 10-8 and 6.3 ¡Á 10-5 M, respectively. The respective kp values are in good agreement with the literature values (3.6 ¡Á 103 M-1 s-1 for OEGMA in water and 2.5 ¡Á 103 M-1 s-1 for methyl acrylate in bulk).
Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.Synthetic Route of 41203-22-9, you can also check out more blogs about41203-22-9
Reference£º
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI