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Issue 5, 2015
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Chemical modification of tannins to elaborate aromatic biobased macromolecular architectures

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Abstract

Tannins are, after lignins, the most abundant source of natural aromatic biomolecules and can be an alternative feedstock for the elaboration of chemicals, building blocks to develop polymers and materials. Tannins are present in all vascular and some non-vascular plants. One of their major issues is the versatility according to their botanical origin, extraction and purification processes. During the last few decades, tannins have been exploited and chemically modified for the development of new biobased polymers, thanks to their functionality brought by phenolic and aliphatic hydroxyl groups. After a historical overview, this review summarizes the different classes of tannins. Some generalities concerning the extraction techniques of tannins and the corresponding properties are also described. This review provides in detail the different chemical modifications of tannins which have been previously reported, with corresponding pathways and applications. Finally, the main chemical pathways to obtain polymeric materials are especially presented.

Graphical abstract: Chemical modification of tannins to elaborate aromatic biobased macromolecular architectures

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Article information


Submitted
06 Feb 2015
Accepted
26 Feb 2015
First published
26 Feb 2015

This article is Open Access

Green Chem., 2015,17, 2626-2646
Article type
Critical Review
Author version available

Chemical modification of tannins to elaborate aromatic biobased macromolecular architectures

A. Arbenz and L. Avérous, Green Chem., 2015, 17, 2626
DOI: 10.1039/C5GC00282F

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