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Furan-Based Polyesters from Diethylene Glycol with Facile Chemical Recyclability
Research Unit of Sustainable Chemistry, University of Oulu, P.O. Box 4300, FI-90014 Oulu, Finland, P.O. Box 4300.
Fibre and Particle Engineering Research Unit, University of Oulu, P.O. Box 4300, FI-90014 Oulu, Finland, P.O. Box 4300.
Research Unit of Sustainable Chemistry, University of Oulu, P.O. Box 4300, FI-90014 Oulu, Finland, P.O. Box 4300.
Research Unit of Sustainable Chemistry, University of Oulu, P.O. Box 4300, FI-90014 Oulu, Finland, P.O. Box 4300.
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2025 (English)In: Macromolecules, ISSN 0024-9297, E-ISSN 1520-5835, Vol. 58, no 8, p. 4160-4169Article in journal (Refereed) Published
Abstract [en]

Simple renewable furans can be used to derive various monomer structures for use in polymeric materials. The dimethyl esters of 2,5-furandicarboxylic acid (FDCA), 5,5′-thiodi(2-furoic acid), and 5,5′-sulfonyldi(2-furoic acid) were reacted with diethylene glycol, yielding renewable polyesters with excellent O2 barrier properties and facile chemical recyclability. Glass transition temperatures for the polyesters were 33-70 °C, while thermal decomposition took place at 321 °C or above. Oxygen permeabilities were measured from free-standing films and compared to poly(ethylene terephthalate). The polyesters showed excellent barrier improvement factors (BIFs) of 3.1-6.0 and 5.2-11.0 at 50 and 0% relative humidities, respectively, with the polyester from the sulfide having the highest BIFs, followed by the polyesters of FDCA and the sulfone in an order that depended on humidity. The three polyesters were remarkably easy to chemically recycle under mild conditions. The original dimethyl esters were recovered by filtration after a room temperature reaction with anhydrous methanol and catalytic K2CO3. Monomer yields from film recycling reached as high as 96% for the sulfide-based polyester with high purity.

Place, publisher, year, edition, pages
American Chemical Society (ACS) , 2025. Vol. 58, no 8, p. 4160-4169
National Category
Polymer Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-363106DOI: 10.1021/acs.macromol.4c02050ISI: 001466608900001Scopus ID: 2-s2.0-105003123666OAI: oai:DiVA.org:kth-363106DiVA, id: diva2:1956355
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QC 20250507

Available from: 2025-05-06 Created: 2025-05-06 Last updated: 2025-05-07Bibliographically approved

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Hedenqvist, Mikael S.

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