A Simple and Cost-Effective FeCl3-Catalyzed Functionalization of Cellulose Nanofibrils: Toward Adhesive Nanocomposite Materials for Medical Implants
Evgenii Tikhomirov,
Antonio Franconetti,
Mathias Johansson
et al.
Abstract:In the present work, we explored Lewis acid catalysis,
via FeCl3, for the heterogeneous surface functionalization
of cellulose
nanofibrils (CNFs). This approach, characterized by its simplicity
and efficiency, facilitates the amidation of nonactivated carboxylic
acids in carboxymethylated cellulose nanofibrils (c-CNF). Following
the optimization of reaction conditions, we successfully introduced
amine-containing polymers, such as polyethylenimine and Jeffamine,
onto nanofibers. This introduction significantly … Show more
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