Solvent Effects in Radical Copolymerization of Styrene with N, N-Dimethylacrylamide

This is the authors' abstract. We don't add key points for this paper.

The radical copolymerization of N, N-dimethylacrylamide (I) with styrene (St) (M1) was carried out in several solvents at 60 and 80°C. The monomer reactivity ratios were considerably affected by the reaction conditions. Linear correlationships were observed by plots of the values of both νC=0 and νC=C stretching frequencies of I obtained in the solvents against those of log r1, log r2, ΔΔE‡ (= ΔE11‡ - ΔE12‡), and ΔΔS‡ (= ΔS11‡ - ΔS12‡). The values of both ΔE12‡ and ΔS12‡ were also determined.