Open Access

ARTICLE

Synthesis of Lignin-Based Polyacid in an Acidic Ionic Liquid: A Green Method to Improve the Performance of Lignin as Catalyst in Urea-Formaldehyde Resin

Hamed Younesi-Kordkheili^1,*, Antonio Pizzi²

1 Department of Wood and Paper Sciences, Faculty of Natural Resources, Semnan University, Semnan, Iran
2 LERMAB, University of Lorraine, Epinal, France

* Corresponding Author: Hamed Younesi-Kordkheili. Email: