Summary
Ethyl 1-cyano-2-(p-methoxyphenyl)cyclopropanecarboxylate (ECMC) with ZnCl2 initiates the free radical polymerization of styrene (St) at 80°C faster than without ZnCl2. A cycloadduct of St and ECMC is detected. The polymer shows a bimodal molecular weight distribution, and a molecular weight increase is observed with conversion. Based on these results, a diradical initiation and propagation mechanism is proposed.
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Li, T., Padias, A.B. & Hall, H.K. Diradical polymerization of styrene initiated by ethyl 1-cyano-2-(p-methoxyphenyl)cyclopropanecarboxylate with ZnCl2 . Polymer Bulletin 25, 537–541 (1991). https://doi.org/10.1007/BF00293511
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DOI: https://doi.org/10.1007/BF00293511