using a simple diffusion model to predict residual monomer migration - considerations and limitations

摘要

A simple mathematical equation based on a diffusion model has been utilized recently to estimate migration of both acrylonitrile and styrene from polymers pro- duced from these monomers which are used under a wide variety of food-contact applications. These calcu- lated migration values have subsequently been used to estimate the US consumer's exposure to acrylonitrile and styrene from food stored in these materials. The basic assumption integral to the model are discussed in relation to potential errors in migration estimates that could be experienced if the assumptions are not true.