Photocatalytic Depolymerization of Native Lignin toward Chemically Recyclable Polymer Networks.

ABSTRACT: As an inedible component of biomass, lignin features rich functional groups that are desired for chemical syntheses. How to effectively depolymerize lignin without compromising the more valuable cellulose and hemicellulose has been a significant challenge. Existing biomass processing procedures either induce extensive condensation in lignin that greatly hinders its chemical utilization or focus on fully depolymerizing lignin to produce monomers that are difficult to separate for subsequent chemical synthesis. Here, we report a new approach to selective partial depolymerization, which produces oligomers that can be readily converted to chemically recyclable polymer networks. The process takes advantage of the high selectivity of photocatalytic activation of the β-O-4 bond in lignin by tetra

SUBMITTER: Wang H 

PROVIDER: S-EPMC9881207 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature