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The first radical polymerization of 1‐methoxy‐ o ‐quinodimethane (2) generated by thermal ring‐opening isomerization of 1‐methoxybenzocyclobutene (1) is described. The polymerization of 1 in the presence of a radical initiator afforded an MeOH‐insoluble polymer (3) in moderate yield at temperatures above 90°C. The structure of the obtained polymer is consistent with a ring‐opening polymerization. The yield of the polymer increased with the amount of initiator. Radical copolymerization with methyl acrylate was carried out. Treatment of 3 with acid gave poly(o‐phenylenevinylene), quantitatively.
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Chino et al. (1996) studied this question.
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