Jump to ContentJump to Main Navigation
Show Summary Details
More options …
Wood Research and Technology

Holzforschung

Cellulose – Hemicelluloses – Lignin – Wood Extractives

Editor-in-Chief: Salmén, Lennart

Editorial Board: Daniel, Geoffrey / Militz, Holger / Rosenau, Thomas / 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


IMPACT FACTOR 2017: 2.079

CiteScore 2017: 1.94

SCImago Journal Rank (SJR) 2017: 0.709
Source Normalized Impact per Paper (SNIP) 2017: 0.979

Online
ISSN
1437-434X
See all formats and pricing
More options …
Volume 63, Issue 6

Issues

Synthesis of a lignin polymer model consisting of only phenolic β-O-4 linkages and testing its reactivity under alkaline conditions 10th EWLP, Stockholm, Sweden, August 25–28, 2008

Jackson D. Megiatto Jr.
  • Université Bordeaux 1, Unité Sciences du Bois et des Biopolymères, UMR UBx1-CNRS-INRA, Talence Cedex, France
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Emmanuel Cazeils
  • Université Bordeaux 1, Unité Sciences du Bois et des Biopolymères, UMR UBx1-CNRS-INRA, Talence Cedex, France
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Stéphane Grelier
  • Université Bordeaux 1, Unité Sciences du Bois et des Biopolymères, UMR UBx1-CNRS-INRA, Talence Cedex, France
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Christian Gardrat
  • Université Bordeaux 1, Unité Sciences du Bois et des Biopolymères, UMR UBx1-CNRS-INRA, Talence Cedex, France
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Frédérique Ham-Pichavant
  • Université Bordeaux 1, Unité Sciences du Bois et des Biopolymères, UMR UBx1-CNRS-INRA, Talence Cedex, France
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Alain Castellan
  • Université Bordeaux 1, Unité Sciences du Bois et des Biopolymères, UMR UBx1-CNRS-INRA, Talence Cedex, France
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2009-11-15 | DOI: https://doi.org/10.1515/HF.2009.056

Abstract

A trimeric β-O-4 lignin model bearing a styrene unit was polymerized in the presence of azobisisobutyronitrile as an initiator of free radical polymerization. The polymer analysis achieved by size exclusion chromatography (SEC), 1H, 13C, 31P NMR, matrix-assisted laser desorption ionization combined with time-of-flight mass spectrometry (MALDI-ToF MS), differential scanning calorimetry, and thermogravimetry indicated its well-defined structure with good thermal stability at temperatures usually applied for alkaline pulping. SEC analysis proved a high degree of polymerization despite the size of the phenolic β-O-4 units in the polymer structure. MALDI-ToF spectrometry indicated that the polymer is composed of phenolic β-O-4 elements only. The chemical reactivity under alkaline conditions of the polymer was studied by both HPLC and 31P NMR. These two methods revealed two main concurrent processes, which include an oxidation of the phenol part followed by Cα-Cβ bond cleavage, and a formation of a quinone methide followed by its β-O-4 bond cleavage.

Keywords: alkaline reactivity; lignin model; phenolic β-O-4 unit; polymer; synthesis

About the article

Corresponding author. Université Bordeaux 1, Unité Sciences du Bois et des Biopolymères, UMR UBx1-CNRS-INRA, F33405 Talence Cedex, France Phone: +33-5-4000-6280 Fax: +33-5-4000-6439


Received: 2008-11-03

Accepted: 2008-12-11

Published Online: 2009-11-15

Published Online: 2009-07-24

Published in Print: 2009-11-01


Citation Information: Holzforschung, Volume 63, Issue 6, Pages 681–689, ISSN (Online) 1437-434X, ISSN (Print) 0018-3830, DOI: https://doi.org/10.1515/HF.2009.056.

Export Citation

Citing Articles

Here you can find all Crossref-listed publications in which this article is cited. If you would like to receive automatic email messages as soon as this article is cited in other publications, simply activate the “Citation Alert” on the top of this page.

[1]
C.G. da Silva, S. Grelier, F. Pichavant, E. Frollini, and A. Castellan
Industrial Crops and Products, 2013, Volume 42, Page 87
[2]
Jackson D. Megiatto, Emmanuel Cazeils, Frédérique Ham-Pichavant, Stéphane Grelier, Christian Gardrat, and Alain Castellan
Biomacromolecules, 2012, Volume 13, Number 5, Page 1652

Comments (0)

Please log in or register to comment.
Log in