Synthesis of SET-LRP-Induced Galactoglucomannan-Diblock Copolymers

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Daniel Dax, Chunlin Xu, Otto Långvik, Jarl Hemming, Peter Backman, Stefan Willför
Publisher: WILEY-BLACKWELL
Publication year: 2013
Journal: Journal of Polymer Science Part A: Polymer Chemistry
Journal acronym: J POLYM SCI POL CHEM
Volume number: 51
Issue number: 23
Start page: 5100
End page: 5110
Number of pages: 11
ISSN: 0887-624X


Abstract

Polysaccharides are biorenewable and biodegradable starting materials for the development of functional materials. The synthesis of a monofunctional macroinitiator for single electron transfer-living radical polymerization was successfully developed from a wood polysaccharide-O-acetyl galactoglucomannan (GGM) using a beforehand synthesized amino-functional -bromoisobutyryl derivative applying reductive amination. The GGM macroinitiator was employed to initiate a controlled radical polymerization of [2-(methacryloyloxy)ethyl]trimethylammonium chloride (MeDMA), methyl methacrylate (MMA), and N-isopropylacrylamide (NIPAM) using Cu-0/Me-6-Tren as a catalyst. The either charged or amphiphilic GGM-b-copolymers with different chain lengths of the synthetic block were successfully synthesized without prior hydrophobization of the GGM chain and dimethyl sulfoxide (DMSO) or DMSO/water mixtures were used as solvents. This novel synthetic approach may find untapped potentials particularly for the development of polysaccharide-based amphiphilic additives for cosmetics or paints and for the design of novel temperature or pH responsive polymers with such potential applications as in drug delivery systems or in biocomposites. (c) 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 5100-5110


Keywords

amphiphilic, biodegradability, biorenewable, block-copolymer, O-acetyl galactoglucomannan, polysaccharide, SET-LRP, stimuli-responsive

Last updated on 2019-18-11 at 05:14