METHODS FOR FORMING LIGNIN PREPOLYMERS AND LIGNIN RESINS
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United States of America
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Apr 14, 2022
app pub date -
Dec 17, 2021
filing date -
Dec 17, 2021
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Abstract
Methods of forming lignin prepolymers are provided. In an embodiment, such a method comprises adding an acid to an ozonized reaction mixture, the ozonized reaction mixture comprising ozonized lignin having a backbone, and aromatic monomers cleaved from a lignin, under conditions to react the cleaved aromatic monomers with the backbone of the ozonized lignin to form a lignin prepolymer. The methods may further comprise using the lignin prepolymer to form a lignin resin.
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