Resumo

VEGA, Rebeca  e  RIEUMONT, Jacques. Kinetic and structural features of furan compounds as inhibitors of the radical polymerization of vinyl acetate. Polímeros [online]. 1997, vol.7, n.3, pp.40-44. ISSN 0104-1428.  https://doi.org/10.1590/S0104-14281997000300007.

Some furan compounds bearing a double bond in the side group have been examined as inhibitors of the radical polymerization of vinyl acetate initiated by AIBN in ethyl acetate at 60 ^oC. The inhibition effect was found to follow the order: furfurylidenacetone > furylacrolein > furanacrylic acid > furylacrylmorpholinamide as a consequence of the greater stabilization of the radical formed. The site of radical attack can be considered either as the C-5 position of the furan ring or as the double bond of the side group. The compounds taken as models such as 5-methylfuranacrylic acid and furfurylidenbutanal indicate that both positions can participate in the inhibitory process.

Palavras-chave : Inhibited vinyl acetate polymerization; furan compounds; kinetic study.

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