Next Article in Journal
Micelles Formed by Polypeptide Containing Polymers Synthesized Via N-Carboxy Anhydrides and Their Application for Cancer Treatment
Next Article in Special Issue
The Preparation and Characterization of Pyrolysis Bio-Oil-Resorcinol-Aldehyde Resin Cold-Set Adhesives for Wood Construction
Previous Article in Journal
Two Ways to Examine Differential Constitutive Equations: Initiated on Steady or Initiated on Unsteady (LAOS) Shear Characteristics
Previous Article in Special Issue
New Mechanism Proposed for the Base-Catalyzed Urea–Formaldehyde Condensation Reactions: A Theoretical Study
Article Menu
Issue 6 (June) cover image

Export Article

Open AccessArticle
Polymers 2017, 9(6), 206; doi:10.3390/polym9060206

Analysis of the Cross-Linking Reaction of Lignin with Triethyl Phosphate by MALDI-TOF and 13C NMR

1
LERMAB, University of Lorraine, ENSTIB-27 rue Philippe Seguin, 88051 EPINAL Cedex 9, 54000 Nancy, France
2
Department of Physics, King Abdulaziz University, Jeddah, P.O. Box 80203, 21589 Jeddah, Saudi Arabia
3
IS2M, Institut de Science des Matériaux de Mulhouse, CNRS LRC 7228; 15, rue Jean Starcky, BP 2488, 68057 Mulhouse, France
*
Author to whom correspondence should be addressed.
Academic Editors: Alexander Böker and Shin-ichi Yusa
Received: 4 April 2017 / Revised: 31 May 2017 / Accepted: 2 June 2017 / Published: 4 June 2017
(This article belongs to the Collection Polymeric Adhesives)
View Full-Text   |   Download PDF [4649 KB, uploaded 4 June 2017]   |  

Abstract

The reaction of condensation and cross-linking of desulfurized kraft lignin with triethyl phosphate (TEP) was explored. Catechol, a simple model of the aromatic ring of lignin, and glycerol, a model compound of the aliphatic hydroyl groups of the side chain of lignin, were employed under similar reaction conditions. Solid state cross-polarisation/magic-angle spinning (CP-MAS) 13C NMR and matrix assisted laser desorption ionization time-of-flight (MALDI-TOF) spectroscopy studies showed that polycondensation occurs on phenolic hydroxyl groups of lignin, as well as on aliphatic hydroxyls groups of its side chain. The reactions appear to be favoured by higher temperatures and in the presence of ammonia. Preliminary adhesion tests on wood shown good hydrophobicity properties of the surface treated with lignin-TEP-based resin. Initial application tests carried out at high temperature demonstrated as good performance as metallic coating. View Full-Text
Keywords: lignin; triethyl phosphate; glycerol; catechol; 13C NMR; MALDI-TOF; polymerization and cross-linking lignin; triethyl phosphate; glycerol; catechol; 13C NMR; MALDI-TOF; polymerization and cross-linking
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Supplementary material

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Basso, M.C.; Pizzi, A.; Delmotte, L.; Abdalla, S. Analysis of the Cross-Linking Reaction of Lignin with Triethyl Phosphate by MALDI-TOF and 13C NMR. Polymers 2017, 9, 206.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top