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An Analysis of the Solvent Effects on the Monomer Reactivity Ratios Using the Copolymer Glass Transition Temperatures

Marta Fernández‐García, José de la Fuente, Marina Fernández‐Sanz, Enrique López Madruga

Abstract

The glass transition temperatures (Tg) of styrene-butyl acrylate copolymers obtained by free radical polymerization in bulk, and in 3 mol·L–1 benzene and benzonitrile solutions, have been measured using differential scanning calorimetry (DSC) to verify the bootstrap effect previously reported for this system. The corresponding values have been correlated with copolymer composition and microstructure using the Johnston equation.

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Key concepts: Copolymer, Glass transition, Differential scanning calorimetry, Polymer chemistry, Materials science, Styrene, Benzonitrile, Reactivity (psychology)