Migration from plasticized poly(vinyl chloride) into fatty media: Importance of simulant selectivity for the choice of volatile fatty simulants

Abstract

An investigation was carried out to determine whether isooctane and ethanol behave like sunflower oil as fatty simulants for overall and for specific migration from PVC containing aromatic plasticizers (bis-2-ethylhexyl phthalate and tris-2-ethylhexyl trimellitate). In these films, the partition coefficients of migrants between simulant and polymer play a major role. The affinities of isooctane and of sunflower oil to all migrants were similar and isooctane can be considered as an alternative fatty simulant for plastized PVC. In contrast ethanol displays a different selectivity, and is not an adequate fatty simulant. Guidelines for the selection of solvents to be used as fatty simulants for migration testing are discussed. The scope of spectroscopic methods (FTIR and 1H-NMR) to monitor migration of aromatic plasticizers is presented.

Experimental and theoretical study of LDPE: Evaluation of different food simulants and temperatures

“…Some authors (Dopico-García et al, 2006;Feigenbaum, Bouquant, Hamdami et al, 1997;Hamdani & Feigenbaum, 1996;Rojas de Gante, 2002) have studied the thermal effect on specific migration under different temperature conditions, although little work has been reported on the suitability of alternative food simulants for migration testing at high temperatures (Galotto & Guarda, 2004). Widen, Leufven, and Nielsen(2004) showed that after 3 month storage, the migration of benzaldehyde form PET bottles into acetic acid increased by about the three times when the storage temperature increased from 20 to 40°C.…”

Montmorillonite clay/poly(methyl methacrylate) hybrid resin and its barrier property to the plasticizer within poly(vinyl chloride) composite

“…To prevent the plasticizer migrating from the inner PVC matrix to the surface of the product or the space has great value. 8,9 In this article, the synthesis and properties of PMMA-clay hybrid and its migration resistance to the plasticizer in PVC/PMMA-clay composite were studied. Results show that, when a specific ammonium ion is chosen as the intercalating reagent, MMT dispersed homogeneously in methyl methacrylate (MMA) monomer that allows MMT dispersing in PMMA matrix in the monolayer form.…”

Migration of di-(2-ethylhexyl)adipate and acetyltributyl citrate plasticizers from food-grade PVC film into isooctane: Effect of gamma radiation

“…There are several methods reported in the literature for the determination of migrating plasticizers, such as GC (both direct and indirect), GC/MS, pyrolysis-GC/MS, HPLC, FTIR, 1 H NMR and radioanalytical techniques (Castle, Jickells, Sharman, Gramshaw, & Gilbert, 1988;Cooper et al, 1998;Goulas & Kontominas, 1996;Hamdani & Feigenbaum, 1996;Hammarling et al, 1998;Nerin et al, 1992;Till et al, 1982;Tsumura et al, 2002;Wang, 2000).…”