Cyclic peroxides as key intermediates in the degradation of cellulosic key chromophores by alkaline hydrogen peroxide

 |  Login

Show simple item record

dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Bacher, Markus Hosoya, Takashi Zwirchmayr, Nele Sophie Nomura, Satoshi Gille, Lars Dietz, Thomas Erata, Tomoki Potthast, Antje Vuorinen, Tapani Rosenau, Thomas 2018-06-18T09:17:58Z 2018-06-18T09:17:58Z 2018-06-01
dc.identifier.citation Bacher , M , Hosoya , T , Zwirchmayr , N S , Nomura , S , Gille , L , Dietz , T , Erata , T , Potthast , A , Vuorinen , T & Rosenau , T 2018 , ' Cyclic peroxides as key intermediates in the degradation of cellulosic key chromophores by alkaline hydrogen peroxide : first direct proof by 17 O NMR ' Cellulose , vol 25 , no. 6 , pp. 3197-3203 . DOI: 10.1007/s10570-018-1777-4 en
dc.identifier.issn 0969-0239
dc.identifier.issn 1572-882X
dc.identifier.other PURE UUID: 0c1e96e3-2e24-4794-b17a-31aa36fd26da
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE LINK:
dc.identifier.other PURE FILEURL:
dc.description.abstract Abstract: 2,5-Dihydroxy-[1,4]-benzoquinone (DHBQ) and 5,8-dihydroxy-[1,4]-naphthoquinone (DHNQ) are two key chromophores which are almost ubiquitous in cellulosic materials. Their fate under conditions of alkaline peroxide bleaching (P stage) has been established previously, but the intermediacy of cyclic peroxides, which so far had only been postulated, remained an open issue. By means of 17O NMR spectroscopy, additionally supported by other NMR techniques, it was demonstrated that both DHBQ and DHNQ form cyclic peroxides as primary intermediates in the reaction with hydrogen peroxide under alkaline conditions. These intermediates are subsequently further degraded to products already known. The experimental confirmation of the cyclic peroxides is an important step in the understanding of reaction mechanisms in pulp bleaching chemistry. Graphical Abstract: [Figure not available: see fulltext.]. en
dc.format.extent 7
dc.format.extent 3197-3203
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Cellulose en
dc.relation.ispartofseries Volume 25, issue 6 en
dc.rights openAccess en
dc.subject.other Polymers and Plastics en
dc.subject.other 216 Materials engineering en
dc.title Cyclic peroxides as key intermediates in the degradation of cellulosic key chromophores by alkaline hydrogen peroxide en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department University of Natural Resources and Life Sciences, Vienna
dc.contributor.department Kyoto Prefectural University
dc.contributor.department University of Veterinary Medicine Vienna
dc.contributor.department Evonik Industries AG
dc.contributor.department Hokkaido University
dc.contributor.department Department of Bioproducts and Biosystems
dc.subject.keyword O NMR
dc.subject.keyword Benzoquinone
dc.subject.keyword Cellulose
dc.subject.keyword Chromophores
dc.subject.keyword Cyclic peroxides
dc.subject.keyword Naphthoquinone
dc.subject.keyword P stage
dc.subject.keyword Pulp bleaching
dc.subject.keyword Polymers and Plastics
dc.subject.keyword 216 Materials engineering
dc.identifier.urn URN:NBN:fi:aalto-201806183295
dc.identifier.doi 10.1007/s10570-018-1777-4
dc.type.version publishedVersion

Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search archive

Advanced Search

article-iconSubmit a publication


My Account