Research Article
Dimitris S Argyropoulos
Abstract
In a manner similar to crude oil, technical lignins need refining if their potential as reactive polyphenols of well-defined molecular weight polymers and oligomers is to be actualized. Our recent work has demonstrated that a continuum of narrow fractions can be isolated by the incremental addition of a non-polar solvent (hexanes) in a polar (acetone) solution of softwood wood kraft lignin