About this Chemistry article
ESR study of the copolymerization of styrene with methyl methacrylate in a polymer matrix at high pressure by Borsig, Eberhard ;Klimová, Marta ;Szőcs, Ferenc ;Ti??o, Jozef is a Chemistry article available to read on EtoBox.
## Abstract The relationships between the mole ratio of styrene monomer to methyl methacrylate monomer and the mole ratio of styrene terminated polymer radicals (“styrene radicals”) to methyl methacrylate terminated radicals (“methyl methacrylate radicals”) in the copolymerization initiated by benzoyl peroxide at the pressure of 6000 atm ( = 6.10^8^ N/m^2^) in a polymer matrix was studied by ESR. The mole ratio of polymer radicals was calculated for varying proportions of styrene and methyl methacrylate at the pressure of 1 atm ( = 10^5^ N/m^2^) and the results were compared with the ESR measurements. The components of the spectra were determined by simulating the spectra on a computer. Higher pressures substantially stabilize the styrene radicals even at a very low total amount of styrene monomer. The effect of pressure on the stability of individual radicals as well as the copolymerization parameters is discussed.
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- Author
- Borsig, Eberhard ;Klimová, Marta ;Szőcs, Ferenc ;Ti??o, Jozef
- Publisher
- Wiley (John Wiley & Sons); Wiley (ISSN 0025-116X)
- Published
- 1975
- Language
- EN
- Field
- Chemistry (Physical Sciences)