Dual Antioxidant Properties and Organic Radical Stabilization in Cellulose Nanocomposite Films Functionalized by In Situ Polymerization of Coniferyl Alcohol

• DOI: 10.1021/acs.biomac.0c00583
• Publication Date: 2020-06-25T17:04:46Z
• Authors: Elise Gerbin; Yves-Michel Frapart; Carlos Marcuello; Betty Cottyn; Laurence Foulon; Miguel Pernes; David Crônier; Michael Molinari; Brigitte Chabbert; Paul-Henri Ducrot; Stéphanie Baumberger; Véronique Aguié-B...; Bernard Kurek
• Keywords: Coniferyl alcohol; Nanocellulose; Vinyl alcohol

A new biobased material based on an original strategy using lignin model compounds as natural grafting additive a nanocellulose surface through in situ polymerization of coniferyl alcohol by the Fenton reaction at two pH values was investigated. The structural and morphological properties materials nanoscale were characterized combination analytical methods, including Fourier transform infrared spectroscopy, liquid chromatography combined with mass spectrometry, nuclear molecular resonance electron paramagnetic water sorption capacity dynamic vapor sorption, atomic force microscopy (topography indentation modulus measurements). Finally, usage properties, such antioxidant evaluated solution nanostructured casted films radical 2,2′-diphenyl-1-picrylhydrazyl (DPPH•) scavenging tests. We demonstrate structure–function relationships these advanced CNC-lignin describe their dual functionalities characteristics, namely, presence persistent phenoxy radicals within material.