Abstract
The block copolymers of styrene and ethyl α-cyanocinnamate were prepared in dioxane and xylene with TEMPO-capped polystyrene (PSTEMPO) as macroinitiator. The copolymerization were carried out at 125°C and 135°C. The reactivity ratios were determined according to Kelen Tudos and compared with the reactivity ratios from the radical copolymerization of styrene and ethyl α-cyanocinnamate determined by Kohn et al. The influence of the comonomer ethyl α-cyanocinnamate on the glass transition temperature was studied in comparison with the corresponding homopolystyrene.
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