Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 2-Chloroethyl acetate, is researched, Molecular C4H7ClO2, CAS is 542-58-5, about Kinetics on Formation of Hyperbranched Poly(ethyl methacrylate) via a Controlled Radical Mechanism of Photofunctional Inimer.Category: chiral-catalyst.
We studied the living nature on the formation of hyperbranched poly(methacrylic acid ester) by free radical photopolymerization of 2-(N,N-diethyldithiocarbamyl)ethyl methacrylate (DTEM) in benzene. We performed the first-order time-conversion plots in this polymerization system, and the straight line in the semilogarithmic coordinates indicated that the polymerization is first order in monomer. The number-average mol. weight (Mn) of hyperbranched polymers increased with increasing conversion. The free radical polymerization proceeded with controlled radical mechanism. Subsequently, we treated the kinetics of initiation and propagation steps of the active A* and B* (side group) sites using model compounds The degradation rates of two types of dithiocarbamate (DC) groups at A and B sites agreed well with theor. trends in C-S bond dissociation energies predicted by the d. functional theory for model compounds The reactivity of the initiating B* was less than that of propagating A* groups. The degree of branching of hyperbranched polymers was discussed using both reaction rates.
《Kinetics on Formation of Hyperbranched Poly(ethyl methacrylate) via a Controlled Radical Mechanism of Photofunctional Inimer》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(2-Chloroethyl acetate)Category: chiral-catalyst.