Kinetically Enhanced Access to a Dynamic Polyester Platform via Sequence Selective Terpolymerisation of Elemental Sulphur

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00009006
URN to cite this document: urn:nbn:de:bvb:703-epub-9006-9

Title data

Gallizioli, Cesare ; Deglmann, Peter ; Plajer, Alex:
Kinetically Enhanced Access to a Dynamic Polyester Platform via Sequence Selective Terpolymerisation of Elemental Sulphur.
In: Angewandte Chemie International Edition. Vol. 64 (2025) Issue 30 . - e202501337.
ISSN 1521-3773
DOI der Verlagsversion: https://doi.org/10.1002/anie.202501337

	Format: PDF Name: Angew Chem Int Ed - 2025 - Gallizioli - Kinetically Enhanced Access to a Dynamic Polyester Platform via Sequence Selective.pdf Version: Published Version Available under License Creative Commons BY 4.0: Attribution
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Project information

Project title:	Project's official title Project's id Kooperative Abfallverwertung: Präzisionspolymere aus Kohlenstoffdioxid und elementarem Schwefel 542928411 Open Access Publizieren No information
Project financing:	Deutsche Forschungsgemeinschaft

Abstract

Elemental sulphur, a waste product of the oil refinement process, contains preformed dynamic sulphur?sulphur bonds promising to impart dynamicity onto polymers obtained from this monomer. Yet robust methodologies to access linear polymers with tuneable properties and functionality are rare. Addressing these problems, we here report a rare sequence selective terpolymerisation of elemental sulphur with aromatic thioanhydrides and epoxides under simple lithium alkoxide catalysis yields semi-aromatic poly(ester-alt-Sx). This enables access to terpolymers from a greatly improved range of epoxide comonomers compared to previous methodologies, including industrially relevant, flexible, rigid, functional and natural product-derived variants, allowing tuning of glass transition temperatures across a Tg range of >150 °C. Mechanistic investigations reveal that the insertion of S8 leads to an unusual rate acceleration via coordinative participation of the polyester links sitting adjacent to the propagating chain end. The thermal stability of the polymers allows for post polymerisation backbone modification via ─S─S─ bond metathesis. After crosslinking, these can be applied as thermally reprocessable and acid degradable adhesives. Our contribution paves the way for the rational buildup of diverse and functional polymer structures from elemental sulphur waste.

Further data

Item Type:	Article in a journal
Keywords:	Polymerisation catalysis; Ring-opening (co/ter)polymerisation; Sulphur waste utilisation; Sulphur-containing polymers
DDC Subjects:	500 Science > 540 Chemistry
Institutions of the University:	Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Junior Professor Polymers for Electrooptical and Sensory Applications > Junior Professor Polymers for Electrooptical and Sensory Applications - Juniorprof. Dr. Alex Johannes Plajer Research Institutions > Affiliated Institutes > Bavarian Polymer Institute (BPI) Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Junior Professor Polymers for Electrooptical and Sensory Applications Research Institutions Research Institutions > Affiliated Institutes
Language:	English
Originates at UBT:	Yes
URN:	urn:nbn:de:bvb:703-epub-9006-9
Date Deposited:	19 Mar 2026 14:09
Last Modified:	19 Mar 2026 14:10
URI:	https://epub.uni-bayreuth.de/id/eprint/9006

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