The monomer reactivity ratios for styrene/ 2-ethylhexylacrylate in bulk at 80degreesC were investigated by studying the resulting copolymer composition via H-1-NMR. Composition results were summarized and various methods were employed to estimate the reactivity ratios including the use of the Error-in-Variables-Model (EVM) approach by using the Mayo-Lewis model. The estimates of the reactivity ratios from the EVM method are found to be r(s) = 0.979 and r(EHA) = 0.292. The resulting copolymer has a tendency toward alternation with an azeotrope of f(styrene) = 0.972. (C) 2004 Wiley Periodicals, lnc.
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Univ Mar del Plata, Natl Res Council, CONICET, Inst Mat Sci & Technol INTEMA, La Plata, ArgentinaUniv Mar del Plata, Natl Res Council, CONICET, Inst Mat Sci & Technol INTEMA, La Plata, Argentina
Schroeder, Walter F.
Aranguren, Mirta I.
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Univ Mar del Plata, Natl Res Council, CONICET, Inst Mat Sci & Technol INTEMA, La Plata, ArgentinaUniv Mar del Plata, Natl Res Council, CONICET, Inst Mat Sci & Technol INTEMA, La Plata, Argentina
Aranguren, Mirta I.
Borrajo, Julio
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Univ Mar del Plata, Natl Res Council, CONICET, Inst Mat Sci & Technol INTEMA, La Plata, ArgentinaUniv Mar del Plata, Natl Res Council, CONICET, Inst Mat Sci & Technol INTEMA, La Plata, Argentina