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Wood Research and Technology

Holzforschung

Cellulose – Hemicelluloses – Lignin – Wood Extractives

Editor-in-Chief: Faix, Oskar

Editorial Board: Daniel, Geoffrey / Militz, Holger / Rosenau, Thomas / Salmen, Lennart / Sixta, Herbert / Vuorinen, Tapani / Argyropoulos, Dimitris S. / Balakshin, Yu / Barnett, J. R. / Burgert, Ingo / Rio, Jose C. / Evans, Robert / Evtuguin, Dmitry V. / Frazier, Charles E. / Fukushima, Kazuhiko / Gindl-Altmutter, Wolfgang / Glasser, W. G. / Holmbom, Bjarne / Isogai, Akira / Kadla, John F. / Koch, Gerald / Lachenal, Dominique / Laine, Christiane / Mansfield, Shawn D. / Morrell, J.J. / Niemz, Peter / Potthast, Antje / Ragauskas, Arthur J. / Ralph, John / Rice, Robert W. / Salin, Jarl-Gunnar / Schmitt, Uwe / Schultz, Tor P. / Sipilä, Jussi / Takano, Toshiyuki / Tamminen, Tarja / Theliander, Hans / Welling, Johannes / Willför, Stefan / Yoshihara, Hiroshi

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Volume 66, Issue 6

Issues

Anthraquinone polymer catalysts for alkaline delignification of lignocellulosic matter. Part 1. Syntheses and characterizations

Emmanuel Cazeils
  • Laboratoire de Chimie des Polymères Organiques, University Bordeaux, UMR 5629, 16 avenue Pey-Berland, F-33607 Pessac, France
  • Present address: Dérivés Résiniques et Terpéniques, 30 rue Gambetta, BP 206, 40105 Dax, France.
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/ Jackson D. Megiatto Jr.
  • Laboratoire de Chimie des Polymères Organiques, University Bordeaux, UMR 5629, 16 avenue Pey-Berland, F-33607 Pessac, France
  • Present address: Arizona State University, Department of Chemistry and Biochemistry, Tempe, AZ 85287-1604, USA.
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/ Christian Gardrat
  • Laboratoire de Chimie des Polymères Organiques, University Bordeaux, UMR 5629, 16 avenue Pey-Berland, F-33607 Pessac, France
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/ Frédérique Pichavant
  • Laboratoire de Chimie des Polymères Organiques, University Bordeaux, UMR 5629, 16 avenue Pey-Berland, F-33607 Pessac, France
  • CNRS, Laboratoire de Chimie des Polymères Organiques, UMR 5629, F-33607 Pessac, France
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/ Stéphane Grelier
  • Laboratoire de Chimie des Polymères Organiques, University Bordeaux, UMR 5629, 16 avenue Pey-Berland, F-33607 Pessac, France
  • CNRS, Laboratoire de Chimie des Polymères Organiques, UMR 5629, F-33607 Pessac, France
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/ Bertrand Boulin / Gilles Sagorin / Pascal Arbicha / Alain Castellan
  • Corresponding author
  • Laboratoire de Chimie des Polymères Organiques, University Bordeaux, UMR 5629, 16 avenue Pey-Berland, F-33607 Pessac, France
  • CNRS, Laboratoire de Chimie des Polymères Organiques, UMR 5629, F-33607 Pessac, France
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Published Online: 2012-03-21 | DOI: https://doi.org/10.1515/hf-2012-0253

Abstract

Syntheses of two new styrene monomers are described, which bear a C4 and C3 chain ending with an anthraquinone (AQ) unit, in para and meta positions of the benzene ring. Both monomers were submitted to radical polymerization, and three linear AQ polystyrene (PS) copolymers (CP-A, CP-B, and CP-C) were prepared. The first two differed by the nature of the link between the AQ and the PS network. An ether oxide group in CP-B gave better accessibility of AQ to the lignin polymer in lignocellulosics, and the incorporation of carboxylic acid functions in CP-C increased its hydrophilicity. The copolymers synthesized were characterized by 1H nuclear magnetic resonance (NMR), 13C NMR, ultraviolet, and Fourier Transform Infrared (FTIR) spectroscopies, such as by size exclusion chromatography (SEC) and thermogravimetry (TG). A cross-linked copolymer (CP-3D) bearing AQ units (11.3%) was prepared by emulsion polymerization in the presence of divinylbenzene. Contrary to linear copolymers, the latter was insoluble in aqueous and organic solutions, and displayed remarkable thermal stability.

Keywords: alkaline pulping; anthraquinone; characterization; polymers; polystyrene copolymers; syntheses

About the article

Corresponding author. Laboratoire de Chimie des Polymères Organiques, UMR 5629 Université Bordeaux 1/CNRS, ENSCBP/IPB, Bâtiment A, 16 avenue Pey-Berland, F-33607 Pessac, France Phone: +33-5-4000-6280 Fax: +33-5-4000-8487


Received: 2011-12-14

Accepted: 2012-02-28

Published Online: 2012-03-21

Published in Print: 2012-08-01


Citation Information: , Volume 66, Issue 6, Pages 681–689, ISSN (Online) 1437-434X, ISSN (Print) 0018-3830, DOI: https://doi.org/10.1515/hf-2012-0253.

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©2012 by Walter de Gruyter Berlin Boston.Get Permission

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