Reactions of epoxide monomers in food simulants used to test plastics for migration

摘要

The reactions of four epoxides used as monomers for food contact plastics were studied in the food simulants distilled water, 15/100 aqueous ethanol, 3/100 aqueous acetic acid and olive oil. Loss of the parent substance and formation of products was motiored to establish the transformation products to be expected in each simulant following migration testing of plastics. Each epoxide was stable in oilve oil but suffered extensive loss in the three aqueous simulants. Reaction half-lives were from<1 to 10 h in aqueous acetic acid, 25-63 h in distilled water, and 33-87 h in aqueous ethanol simu- lant.