Abstract
Conversion of β-elemene into new β-elemene dicarbonates through epoxidation and halide salt-catalyzed CO2 cycloaddition reactions is reported. Step-growth polyaddition of this dicarbonate to five different, commercial diamines was investigated under neat conditions at 150 °C yielding non-isocyanate-based low molecular weight oligo(hydroxyurethane)s with 1.3≤Mn≤6.3 kDa and 1.3≤Ð≤2.1, and with glass transition temperatures ranging from −59 to 84 °C. The preparation of one selected polyhydroxyurethane material, obtained in the presence of Jeffamine® D-2010 was scaled-up to 43 g. The latter, when combined in a formulation using Irgacure® 2100 and Laromer® LR 9000 allowed the preparation of coatings that were analyzed with several techniques showing the potential of these biobased oligourethanes towards the preparation of commercially relevant materials.
Original language | English |
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Article number | e202201123 |
Number of pages | 8 |
Journal | ChemSusChem |
Volume | 15 |
Issue number | 17 |
Early online date | 27 Jun 2022 |
DOIs | |
Publication status | Published - 7 Sept 2022 |
Bibliographical note
Funding Information:We thank the Cerca program/Generalitat de Catalunya, ICREA and MINECO (PID2020-112684GB-100) for support. We also thank the Ministerio de Ciencia e Innovación for funding through Severo Ochoa Excellence Accreditation 2020–2023 (CEX2019-000925-S, MIC/AEI). F.D.M. kindly acknowledges the European Community for a postdoctoral fellowship through the European Union's Horizon 2020 research and innovation program under Marie Skłodowska-Curie Grant Agreement No. 840557. A.B. thanks the ERDF (European Regional Development Fund) for financial support through the POCTEFA Interreg program (EFA308/19 TRIPyr). We also thank Isobionics for a kind donation of beta-elemene. Open Access funding provided by Università degli Studi dell'Insubria within the CRUI-CARE Agreement.
Publisher Copyright:
© 2022 The Authors. ChemSusChem published by Wiley-VCH GmbH.
Keywords
- amine reagents
- beta-elemene
- carbon dioxide
- cyclic carbonates
- polyurethanes
ASJC Scopus subject areas
- Environmental Chemistry
- General Chemical Engineering
- General Materials Science
- General Energy