@article{2b35aa9881c44942b56f2ebb78a38482,
title = "Preparation of Renewable Thiol-Yne {"}Click{"} Networks Based on Fractionated Lignin for Anticorrosive Protective Film Applications",
abstract = "The synthesis of novel, renewable lignin-based protective films with anticorrosive properties is presented in this work. Thermosetting films are prepared by means of tandem UV-initiated thiol-yne {"}click{"} synthesis and Claisen rearrangement strategy. These films contain high lignin loading, 46-61%, originating from a nickel-catalyzed birch wood reductive catalytic fractionation (RCF) process. Lignin fractions with varying monomer content are compared before resins preparation, namely a mixture of monomers and oligomers without fractionation, or after fractionation via extraction and membrane separation. This study aims to determine if the separation of lignin monomers and oligomers is necessary for the application as a thermosetting resin. The resulting films exhibit remarkable adhesion to a metal surface and excellent solvent resistance, even after exposure to a corrosive environment. Moreover, those films show superior barrier properties, studied with odd random phase electrochemical impedance spectroscopy (ORP EIS). After 21 days of exposure, the examined films still show impressive high corrosion protection with the low-frequency impedance approximate to 10(10) omega cm(2) and capacitive behavior. This work demonstrates an interesting proof-of-concept where laborious, costly, and energy-intensive separation of the depolymerized lignin mixture of monomers and oligomers is not necessary for the successful resin synthesis with excellent properties using the applied synthetic strategy.",
keywords = "ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY, LIGNOCELLULOSE FRACTIONATION, anticorrosion, barrier properties, biorefinery, fractionation, lignin, reductive catalytic fractionation, resins",
author = "M.A. Jedrzejczyk and N. Madelat and B. Wouters and H. Smeets and M. Wolters and S.A. Stepanova and T. Vangeel and {Van Aelst}, K. and {Van den Bosch}, S. and {Van Aelst}, J. and V. Polizzi and K. Servaes and K. Vanbroekhoven and B. Lagrain and B.F. Sels and H. Terryn and K.V. Bernaerts",
note = "Funding Information: This work was funded by the European Interreg V Flanders‐The Netherlands program BIO‐HArT and by the Ministry of Economic Affairs and Climate from the Netherlands. K.V.A. acknowledges funding through FWO‐SBO project BioWood and Catalisti‐SBO project NIBCON. T.V. acknowledges postdoctoral research funding from the KU Leuven Internal Funds (PDM). S.S. acknowledges funding through the Global Ph.D. Partnership program from KU Leuven internal funds with Maastricht University. J.V.A. and S.V.d.B. acknowledge Flanders Innovation & Entrepreneurship (innovation mandate – postdoc). B.L. and J.V.A. acknowledge funding through the Industrial Research Fund KU Leuven (IOF fellow). B.S. acknowledges the EU Interreg Flanders‐The Netherlands project BIO‐HArT for the financial support for biorefinery research. Funding Information: This work was funded by the European Interreg V Flanders-The Netherlands program BIO-HArT and by the Ministry of Economic Affairs and Climate from the Netherlands. K.V.A. acknowledges funding through FWO-SBO project BioWood and Catalisti-SBO project NIBCON. T.V. acknowledges postdoctoral research funding from the KU Leuven Internal Funds (PDM). S.S. acknowledges funding through the Global Ph.D. Partnership program from KU Leuven internal funds with Maastricht University. J.V.A. and S.V.d.B. acknowledge Flanders Innovation & Entrepreneurship (innovation mandate – postdoc). B.L. and J.V.A. acknowledge funding through the Industrial Research Fund KU Leuven (IOF fellow). B.S. acknowledges the EU Interreg Flanders-The Netherlands project BIO-HArT for the financial support for biorefinery research. Publisher Copyright: {\textcopyright} 2022 The Authors. Macromolecular Chemistry and Physics published by Wiley-VCH GmbH.",
year = "2022",
month = jul,
doi = "10.1002/macp.202100461",
language = "English",
volume = "223",
journal = "Macromolecular Chemistry and Physics",
issn = "1022-1352",
publisher = "Wiley-VCH Verlag",
number = "13",
}