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Methylation of softwood and hardwood kraft lignins with chloromethane.

Authors :
Beaudoin D
Palus E
Konduri MKR
Gagné A
Source :
RSC advances [RSC Adv] 2024 Jan 10; Vol. 14 (4), pp. 2293-2299. Date of Electronic Publication: 2024 Jan 10 (Print Publication: 2024).
Publication Year :
2024

Abstract

Methylation is a well-established means of enhancing the thermal stability, improving the compatibility in polymer blends, and lowering the glass-transition temperature of lignins. This process normally involves reagents that are costly, associated with poor atom economy and/or highly toxic. Herein, we report the methylation of softwood and hardwood kraft lignins using chloromethane in alkaline aqueous media. This reaction proceeds in high yields at 90-110 °C under moderate pressure (40 psi) while generating environmentally benign sodium chloride and water as by-products.<br />Competing Interests: There are no conflicts to declare.<br /> (This journal is © The Royal Society of Chemistry.)

Details

Language :
English
ISSN :
2046-2069
Volume :
14
Issue :
4
Database :
MEDLINE
Journal :
RSC advances
Publication Type :
Academic Journal
Accession number :
38213968
Full Text :
https://doi.org/10.1039/d3ra08404c