The effect of solvent on the homo‐propagation rate coefficients of styrene and methyl methacrylate

Critically evaluated rate coefficients for free-radical polymerization, 3. Propagation rate coefficients for alkyl methacrylates

“…Some PLP-SEC investigations have shown that k p may be affected by the solvent in methacrylate polymerizations 19,20,21) . For example, in DMA polymerizations in toluene at low temperatures, a reduction in k p of about 15% compared to the bulk value has been observed 21) .…”

Pulsed initiation polymerization as a means of obtaining propagation rate coefficients in free-radical polymerizations. II Review up to 2000

“…[74,129] The group of Davis investigated the molecular weight of the resulting polymer from a PLP experiment of MMA with matrix-assisted laser desorption time of flight mass spectrometry (MALDI-TOF MS), [17,95] and the possibilities of using visible light in the PLP experiment [120,130] to make the experiment suitable for otherwise strongly UVabsorbing monomers like substituted styrenes and Nvinylcarbazole and studied several copolymerizations and terpolymerizations. [90,92,94,113,121] Furthermore they studied homopolymerizations of alkylmethacrylates, [131] substituted styrenes [93] and solvent effect.…”

“…[90,92,94,113,121] Furthermore they studied homopolymerizations of alkylmethacrylates, [131] substituted styrenes [93] and solvent effect. [91,129] The group of Buback, [20-26, 68, 77-88, 111] besides the high pressure work, mainly worked on (meth)acrylate PLP and PLP in liquid CO 2 . The group of Gilbert [32-39, 76, 99, 126] recently determined the k p values for N-isopropylacrylamide in water.…”

“…[10,21,35] Recently, however, pronounced solvent effects were observed for the system Sty/MMA in benzyl alcohol using the PLP/SEC technique in combination with composition data and sequence distributions. [74] A further study [129] showed that both benzyl alcohol and N-methyl pyrrolidinone have a strong effect on homopropagation rate coefficients of both styrene and methyl methacrylate. In these cases the k p -values increased with the addition of especially benzyl alcohol as compared to bulk (see also Tab.…”

A kinetic study of butyl acrylate free radical polymerization in benzene solution

“…[39] Nevertheless, there are systems in which very significant changes in k p are reported, i. e. the polymerization of styrene and methyl methacrylate in benzyl alcohol. [40] A decrease of k p is observed as the monomer concentration in benzyl alcohol increases, [40] but differences in the propagation rate coefficients are no larger than 25%. This result is contrary to the increase observed for the values of k p /k 1a2 t when the monomer concentration of BA in benzene increases.…”