Research Status of Lignin-Based Polyurethane and Its Application in Flexible Electronics
2024; Multidisciplinary Digital Publishing Institute; Volume: 16; Issue: 16 Linguagem: Inglês
10.3390/polym16162340
ISSN2073-4360
AutoresJingbo Hu, Mengmeng Huang, Xing Zhou, Rubai Luo, Lu Li, Xiaoning Li,
Tópico(s)Oxidative Organic Chemistry Reactions
ResumoPolyurethanes (PU) have drawn great attention due to their excellent mechanical properties and self-healing and recyclable abilities. Lignin is a natural and renewable raw material in nature, composed of a large number of hydroxyl groups, and has a great potential to replace petroleum polyols in PU synthesis. This review summarizes the recent advances in modification methods such as the liquefaction, alkylation, and demethylation of lignin, and a systematic analysis of how to improve the reactivity and monomer substitution of lignin during polyurethane synthesis for the green manufacturing of high-performance polyurethanes was conducted. Polyurethane can be used in the form of films, foams, and elastomers instead of conventional materials as a dielectric or substrate material to improve the reliability and durability of flexible sensors; this review summarizes the green synthesis of polyurethanes and their applications in flexible electronics, which are expected to provide inspiration for the wearable electronics sector.
Referência(s)