Výsledky vyhledávání - "Heribert Winter"

Degradation of the cellulosic key chromophore 2,5-dihydroxy-[1,4]-benzoquinone (DHBQ) under conditions of chlorine dioxide pulp bleaching: formation of rhodizonate as secondary chromophore—a combined experimental and theoretical study

Autor: Heribert Winter, Sara Zaccaron, Takashi Hosoya, Thomas Dietz, Stefan Böhmdorfer, Arnulf Kai Mahler, Matthias Guggenberger, Antje Potthast, Heidemarie Reiter, Martin Spitzbart, Hubert Hettegger, Markus Bacher, Nele Sophie Zwirchmayr, Klaus Eibinger, Thomas Röder, Thomas Rosenau

Publikováno v: Cellulose. 27:3623-3649

Abstract 2,5-Dihydroxy-[1,4]-benzoquinone (DHBQ, 1) is the most prominent representative of cellulosic key chromophores, which occur almost ubiquitously in all types of aged cellulosics. The degradation of DHBQ by chlorine dioxide under conditions of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0f0cf37156c14b22c4c2475aa2bf1ef7
https://doi.org/10.1007/s10570-020-03014-y

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Chromophores in cellulosics, XVIII. Degradation of the cellulosic key chromophore 5,8-dihydroxy-[1,4]-naphthoquinone under conditions of chlorine dioxide pulp bleaching: a combined experimental and theoretical study

Autor: Thomas Rosenau, Heidemarie Reiter, Thomas Dietz, Martin Spitzbart, Takashi Hosoya, Nele Sophie Zwirchmayr, Klaus Eibinger, Wolfgang Kreiner, Thomas Elder, Antje Potthast, Thomas Röder, Karl Michael Klinger, Heribert Winter, Arnulf Kai Mahler

Publikováno v: Cellulose. 25:4941-4954

5,8-Dihydroxy-[1,4]-naphthoquinone (DHNQ) is one of the key chromophores occurring in all types of aged cellulosics. This study investigates the degradation of DHNQ by chlorine dioxide at moderately acidic (pH 3) conditions, corresponding to the cond

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6092e5da57488d011c8e59bea60b6f8a
https://doi.org/10.1007/s10570-018-1912-2

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Degradation of the cellulosic key chromophores 2,5- and 2,6-dihydroxyacetophenone by hydrogen peroxide under alkaline conditions. Chromophores in cellulosics, XVII

Autor: Markus Bacher, Heidemarie Reiter, Martin Spitzbart, Antje Potthast, Thomas Röder, Thomas Rosenau, Thomas Elder, Wolfgang Kreiner, Nele Sophie Zwirchmayr, Takashi Hosoya, Klaus Eibinger, Ute Henniges, Heribert Winter, Arnulf Kai Mahler, Thomas Dietz

Publikováno v: Cellulose. 25:3815-3826

The dihydroxyacetophenones 2,5-dihydroxyacetophenone (2,5-DHAP) and 2,6-dihydroxy-acetophenone (2,6-DHAP) belong to the key chromophores in cellulosic materials. The pulp and paper industry targets these key chromophores in their bleaching sequences

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f79b789e8c8c3e4d5c9f0996773d280e
https://doi.org/10.1007/s10570-018-1817-0

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A novel approach to determining the contribution of the fiber and fines fraction to the water retention value (WRV) of chemical and mechanical pulps

Autor: Melanie Mayr, Heribert Winter, Wolfgang Bauer, Rene Eckhart

The swelling behavior of pulp fibers has a significant influence on process and product properties. The water uptake of fibers is controlled by a different mechanism. While fiber charge is a driving factor for swelling, the swelling is hindered by th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f0cf019faa9dd90470fdca9201060c0
http://openlib.tugraz.at/5bffa928af850

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