Lie, Yann, Pellis, Alessandro, Funes-Ardoiz, Ignacio et al. (3 more authors) (2020) Work-hardening Photopolymer from Renewable Photoactive 3,3’-(2,5-Furandiyl)bisacrylic Acid. ChemSusChem. pp. 4140-4150. ISSN 1864-564X
Abstract
The design of a photopolymer around a renewable furan-derived chromophore is presented herein. An optimised semi-continuous oxidation method using MnO2 affords 2,5-diformylfuran from 5-(hydroxymethyl)furfural in gram quantities, allowing the subsequent synthesis of 3,3’-(2,5-furandiyl)bisacrylic acid in good yield and excellent stereoselectivity. The photoactivity of the diester of this monomer is confirmed by reaction under UV irradiation, and the proposed [2+2] cycloaddition mechanism supported further by TD-DFT calculations. Oligoesters of the photoreactive furan diacid with various aliphatic diols are prepared via chemo- and enzyme-catalysed polycondensation. The latter enzyme-catalysed (Candida antarctica lipase B) method results in the highest Mn (3.6 kDa), suggesting milder conditions employed with this protocol minimised unwanted side reactions, including untimely [2+2] cycloadditions, whilst preserving the monomer's photoactivity and stereoisomerism. The photoreactive polyester is solvent cast into a film where subsequent initiator-free UV curing leads to an impressive increase in the material stiffness, with work-hardening characteristics observed during tensile strength testing.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 The Authors. |
Keywords: | density functional theory,enzyme catalysis,furandiyl diacrylic esters,photochemistry,renewable polyester |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Chemistry (York) |
Funding Information: | Funder Grant number EPSRC EP/L017393/1 BBSRC (BIOTECHNOLOGY AND BIOLOGICAL SCIENCES RESEARCH COUNCIL) BB/N023595/1 |
Depositing User: | Pure (York) |
Date Deposited: | 11 Aug 2020 15:20 |
Last Modified: | 01 Dec 2024 01:16 |
Published Version: | https://doi.org/10.1002/cssc.202000842 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1002/cssc.202000842 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:164306 |