| Abstract: | The preparation and characterization of films based on ethoxylated and acrylated triethanolamine or ?-aminecaprolactam or acrylated block copolymer of ethylene oxide (EO) and propylene oxide (PO) are described. Chemical characterization of films and migration of the plasticizers through the films were monitored with electron spectroscopy for chemical analysis. The (EO)x(PO)y(EO)x–3A film was shown to be unique in the sense that it efficiently prevents migration of hydrophobic species. © 1997 John Wiley & Sons, Ltd. |
