Preparation and use of biosourced mellophanicdianhydrideas a chain extender for R-PET as an alternative to oil-based pyromelliticdianhydride.The synthesis of mellophanic dianhydride (MEDA) frombiosourced1,2,3,4-benzene tetracarboxylic derivatives and its use as a chainextender for mechanically recycled PET (R-PET) as an alternative totraditional oil-based pyromellitic dianhydride (PMDA) is reported.The rheological tests performed on the R-PET extruded with MEDA haveshown similar results to those obtained with PMDA, and dynamic mechanicalthermal analysis (DMTA) showed that, in the 90-110 & DEG;Crange (i.e., the temperature range commonly used for blow moldingof bottles), Young's modulus of R-PET containing MEDA is about20% higher in comparison to that of pristine R-PET. The advantageof MEDA is that it can be prepared using building blocks obtainedfrom agricultural waste via a sustainable protocol,whereas PMDA is a product of oil-based chemistry.
Biosourced Aromatic Derivatives in the Upcycling of Recycled PET: Mellophanic Dianhydride as a Chain Extender / A. Truscello, S. Colletti, C. Gambarotti, M.A. Ortenzi, S. Gazzotti, M.S. Galimberti. - In: ACS SUSTAINABLE CHEMISTRY & ENGINEERING. - ISSN 2168-0485. - 11:26(2023 Jun 20), pp. 9721-9728. [10.1021/acssuschemeng.3c01636]
Biosourced Aromatic Derivatives in the Upcycling of Recycled PET: Mellophanic Dianhydride as a Chain Extender
M.A. Ortenzi
;S. GazzottiPenultimo
;
2023
Abstract
Preparation and use of biosourced mellophanicdianhydrideas a chain extender for R-PET as an alternative to oil-based pyromelliticdianhydride.The synthesis of mellophanic dianhydride (MEDA) frombiosourced1,2,3,4-benzene tetracarboxylic derivatives and its use as a chainextender for mechanically recycled PET (R-PET) as an alternative totraditional oil-based pyromellitic dianhydride (PMDA) is reported.The rheological tests performed on the R-PET extruded with MEDA haveshown similar results to those obtained with PMDA, and dynamic mechanicalthermal analysis (DMTA) showed that, in the 90-110 & DEG;Crange (i.e., the temperature range commonly used for blow moldingof bottles), Young's modulus of R-PET containing MEDA is about20% higher in comparison to that of pristine R-PET. The advantageof MEDA is that it can be prepared using building blocks obtainedfrom agricultural waste via a sustainable protocol,whereas PMDA is a product of oil-based chemistry.File | Dimensione | Formato | |
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Biosourced Aromatic derivatives in the upcycling of recycled PET.pdf
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