title: Modelling of additive diffusion in polyolefins.
abstract: A semi-empirical model has been developed for additive diffusion in polymers. The model estimates apparent diffusion coefficients of an additive migrating through polyolefin polymers into a fatty food simulant for a range of temperatures between the glass transition and melting temperatures of the polymer. This diffusion model has been applied to several additive/polyolefin systems to determine its validity and limitations.
authors.affiliation: US Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204, USA.
authors.forename: W
authors.initials: W
authors.lastname: Limm
authors.forename: H C
authors.initials: HC
authors.lastname: Hollifield
mesh_terms: D000475:Alkenes / Q000737:chemistry*; D004058:Diffusion; D005503:Food Additives / Q000737:chemistry*; D008956:Models, Chemical; D014481:United States; D014486:United States Food and Drug Administration
chemical_list: D000475:Alkenes; D005503:Food Additives