Zannini, Domenico (2025) Chemical recycling of post-used traditional and bioplastics. [Tesi di dottorato]
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| Tipologia del documento: | Tesi di dottorato |
|---|---|
| Lingua: | English |
| Titolo: | Chemical recycling of post-used traditional and bioplastics |
| Autori: | Autore Email Zannini, Domenico domenico.zannini@unina.it |
| Data: | 11 Dicembre 2025 |
| Numero di pagine: | 219 |
| Istituzione: | Università degli Studi di Napoli Federico II |
| Dipartimento: | Scienze Chimiche |
| Dottorato: | Scienze chimiche |
| Ciclo di dottorato: | 38 |
| Coordinatore del Corso di dottorato: | nome email Napolitano, Alessandra alessandra.napolitano@unina.it |
| Tutor: | nome email Tesser, Riccardo [non definito] Rosa, Turco [non definito] |
| Data: | 11 Dicembre 2025 |
| Numero di pagine: | 219 |
| Parole chiave: | chemical recycling; cyclodepolymerization; enzymatic degradation; expanded polystyrene (EPS); circular economy |
| Settori scientifico-disciplinari del MIUR: | Area 03 - Scienze chimiche > CHIM/04 - Chimica industriale Area 03 - Scienze chimiche > CHIM/05 - Scienza e tecnologia dei materiali polimerici |
| Informazioni aggiuntive: | Ciclo di effettiva appartenenza 38 |
| Depositato il: | 07 Gen 2026 10:57 |
| Ultima modifica: | 12 Ago 2026 05:37 |
| URI: | https://www.fedoa.unina.it/id/eprint/16095 |
Abstract
The global increase in plastic waste poses significant environmental and health challenges, driving the need for sustainable recycling strategies. This thesis explores chemical recycling approaches for both conventional plastics, such as polystyrene and expanded polystyrene (EPS), and biodegradable polyesters like poly(butylene adipate-co-terephthalate) (PBAT). A comprehensive overview of plastic waste, current recycling practices, and the limitations of conventional methods is provided. For EPS, a one-pot process involving dissolution in styrene followed by radical polymerization is developed, enabling upcycling without polymer–solvent separation. The effects of high recycled EPS content and initiator ratios on polymerization and product properties are analyzed. For PBAT, chemical depolymerization strategies for monomer recovery and oligomer formation are investigated, alongside cyclodepolymerization and entropically driven ring-opening polymerization of macrocyclic oligomers. Enzymatic degradation of PBAT compared to PBT is also assessed. This work provides a comprehensive assessment of chemical recycling techniques, highlighting their potential to enhance sustainability, material recovery, and the circularity of both traditional and bioplastics.
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