145424 20260217205602.0 doi 10.1021/acsapm.4c02230 sideral 140269 ART-2024-140269 eng Paiva, Robert Biobased polymer recycling: a comprehensive dive into the recycling process of PLA and its decontamination efficacy 2024 Access copy available to the general public Unrestricted The recycling process and the presence of contaminants play important roles in alimentary security. In this research, poly(lactic acid) (PLA) samples were contaminated using an FDA-defined framework by immersing them in a cocktail of five surrogates (benzophenone, tetracosane, heptane, chloroform, and toluene). Migration tests were then conducted on the samples after different recycling stages by using two food simulants and varying conditions. To this end, it was used SPME–GC–MS and GC–MS techniques in order to evaluate the efficiency of the recycling technology. The contaminants in PLA samples decreased after they were submitted to the total recycling cycle. Compounds such as tetracosane, heptane, and toluene showed decreased values between 73 and 80%, much higher than those obtained when the sample went through only washing or mechanical recycling. The theoretical molecular volume of contaminants, the type of food simulants, the temperature of the test, and the interactions between the polymer and surrogates influence the input and output of contaminants. The interaction energy values estimated from electronic structure calculations prove to be useful for predicting and analyzing global interaction trends between contaminants and the polymer. Consistency was observed between the results obtained from the Hansen sphere analysis and the theoretical approach. info:eu-repo/grantAgreement/ES/DGA-FSE/T53-20R info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es 4.8 2024 POLYMER SCIENCE 22 / 94 = 0.234 2024 Q1 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 148 / 461 = 0.321 2024 Q2 T1 0.981 2024 Organic Chemistry 2024 Q1 Polymers and Plastics 2024 Q1 Process Chemistry and Technology 2024 Q2 6.9 2024 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Aznar, Margarita Universidad de Zaragoza (orcid)0000-0002-0759-9170 Wrona, Magdalena de Lima Batista, Ana Paula Nerín, Cristina Universidad de Zaragoza (orcid)0000-0003-2685-5739 Cruz, Sandra A. 2009 750 Universidad de Zaragoza Dpto. Química Analítica Área Química Analítica 6, 19 (2024), 12154-12163 ACS appl. polymer. mater. ACS applied polymer materials 2637-6105 3719011 http://zaguan.unizar.es/record/145424/files/texto_completo.pdf Versión publicada 3278083 http://zaguan.unizar.es/record/145424/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:145424 articulos driver 2026-02-17-20:45:10 ARTICLE