Issue 17, 2013
From the journal:

Polymer Chemistry

RAFT copolymerization of alginate-derived macromonomers – synthesis of a well-defined poly(HEMAm)-graft-(1→4)-α-l-guluronan copolymer capable of ionotropic gelation†

Ali Ghadban,‡b   Eric Reynaud,b   Marguerite Rinaudoa  and  Luca Albertin*b  

* Corresponding authors

a 6 rue Lesdiguières, 38000 Grenoble, France

b Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), Affiliated with Université Joseph Fourier, and member of the Institut de Chimie Moléculaire de Grenoble, BP53, 38041 Grenoble Cedex 9, France
E-mail: luca.albertin@cermav.cnrs.fr
Fax: +33 (0)4 76 54 72 03
Tel: +33 (0)4 76 03 76 60

Abstract

The aqueous RAFT copolymerization of methacrylamide- and methacrylate-functionalized (1→4)-α-L-guluronan and (1→4)-β-D-mannuronan macromonomers with N-(2-hydroxyethyl)methacrylamide afforded synthetic-g-polysaccharide copolymers with a predetermined and well-defined molar mass (“grafting through” approach). One such polymer featuring guluronan graft chains of Xn = 21 was able to undergo ionotropic gelation in the presence of Ca2+ ions and to form a soft hydrogel in spite of the fairly low molar mass (Mn = 77 000 Da). The high yield synthesis of a new methacrylate-functionalized (1→4)-α-L-guluronan is also reported.

Graphical abstract: RAFT copolymerization of alginate-derived macromonomers – synthesis of a well-defined poly(HEMAm)-graft-(1→4)-α-l-guluronan copolymer capable of ionotropic gelation

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Article information

DOI
https://doi.org/10.1039/C3PY00730H
Article type
Communication
Submitted
04 Jun 2013
Accepted
30 Jun 2013
First published
01 Jul 2013

Polym. Chem., 2013,4, 4578-4583

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RAFT copolymerization of alginate-derived macromonomers – synthesis of a well-defined poly(HEMAm)-graft-(1→4)-α-L-guluronan copolymer capable of ionotropic gelation

A. Ghadban, E. Reynaud, M. Rinaudo and L. Albertin, Polym. Chem., 2013, 4, 4578 DOI: 10.1039/C3PY00730H

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