Tunable Boc Modification of Lignin and Its Impact on Microbial Degradation Rate

20 November 2018, Version 2
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

A new type of modified lignin, lignin-p-Boc was obtained through reaction with di-tert-butyl dicarbonate in aqueous media. Boc modification occurred regardless of types of lignin, was tunable, and proceeded well in recovering lignin at high purity from sodium lignosulfonate. Further reactivity of Lignin-p-BOC was demonstrated as a potential reactive filler in green plastic and as potential crosslinker in design of bioresorbable composite polymeric implants. Furthermore, the effects of the modification on the breakdown rate of alkali lignin by microbial (white rot fungus P. chrysosporium) was investigated, and the results showed that the modification obviously decreased the breakdown rate.
A pre-recorded video of my presentation in ACS Fall National Meeting 2020 see: https://doi.org/10.1021/scimeetings.0c06672

Keywords

lignin matrix
Modification
Reactive filler
di-tert-butyl dicarbonate
Microbial Degradation

Supplementary materials

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