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dc.contributor.authorMontgomery, James
dc.contributor.authorLancefield, Christopher Stuart
dc.contributor.authorMiles-Barrett, Daniel
dc.contributor.authorAckermann, Katrin
dc.contributor.authorBode, Bela Ernest
dc.contributor.authorWestwood, Nicholas James
dc.contributor.authorLebl, Tomas
dc.date.accessioned2017-12-01T15:30:07Z
dc.date.available2017-12-01T15:30:07Z
dc.date.issued2017-11-30
dc.identifier.citationMontgomery , J , Lancefield , C S , Miles-Barrett , D , Ackermann , K , Bode , B E , Westwood , N J & Lebl , T 2017 , ' Fractionation and DOSY NMR as analytical tools : from model polymers to a technical lignin ' , ACS Omega , vol. 2 , no. 11 , pp. 8466-8474 . https://doi.org/10.1021/acsomega.7b01287en
dc.identifier.issn2470-1343
dc.identifier.otherPURE: 251516439
dc.identifier.otherPURE UUID: 8763b273-dc0e-43e1-80b3-6387b6f89602
dc.identifier.otherORCID: /0000-0002-0269-3221/work/48131723
dc.identifier.otherORCID: /0000-0002-3384-271X/work/39245049
dc.identifier.otherORCID: /0000-0003-0630-0138/work/56424209
dc.identifier.otherScopus: 85051082983
dc.identifier.otherWOS: 000418744100109
dc.identifier.urihttps://hdl.handle.net/10023/12221
dc.descriptionThis work was supported by EPSRC Ph.D. studentships (EP/ 1518175 (DMB) and EP/1654168 (JRDM)), the Industrial Biotechnology Innovation Centre (Ph.D. studentship to DMB), and an EPSRC Doctoral Prize Fellowship (CSL).en
dc.description.abstractOne key challenge hindering the valorization of lignin is its structural complexity. Artificial lignin-like materials provide a stepping stone between the simplicity of model compounds and the complexity of lignin. Here, we report an optimized synthesis of an all-G β-O-4 polymer 1 designed to model softwood lignin. After acetylation, the polymer Ac-1(V) was fractionated using a protocol that involved only volatile organic solvents, which left no insoluble residue. Using diffusion ordered spectroscopy NMR in combination with gel permeation chromatography, it was revealed that this fractionated material behaved like a flexible linear polymer in solution (average α > 0.5). Acetylated kraft lignin was subsequently processed using the same fractionation protocol. By comparison with the model polymer, we propose that the acetylated kraft lignin is composed of two classes of materials that exhibit contrasting physical properties. One is comparable to the acetylated all-G β-O-4 polymer Ac-1, and the second has a significantly different macromolecular structure.
dc.language.isoeng
dc.relation.ispartofACS Omegaen
dc.rights© 2017 American Chemical Society. This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.en
dc.subjectQD Chemistryen
dc.subjectDASen
dc.subject.lccQDen
dc.titleFractionation and DOSY NMR as analytical tools : from model polymers to a technical ligninen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. EaSTCHEMen
dc.contributor.institutionUniversity of St Andrews. Biomedical Sciences Research Complexen
dc.contributor.institutionUniversity of St Andrews. Centre of Magnetic Resonanceen
dc.identifier.doihttps://doi.org/10.1021/acsomega.7b01287
dc.description.statusPeer revieweden
dc.identifier.urlhttp://pubs.acs.org/doi/suppl/10.1021/acsomega.7b01287en


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