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Synthesis of SET-LRP-Induced Galactoglucomannan-Diblock Copolymers
KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center.
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2013 (English)In: Journal of Polymer Science Part A: Polymer Chemistry, ISSN 0887-624X, E-ISSN 1099-0518, Vol. 51, no 23, 5100-5110 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2013. Vol. 51, no 23, 5100-5110 p.
Keyword [en]
amphiphilic, biodegradability, biorenewable, block-copolymer, O-acetyl galactoglucomannan, polysaccharide, SET-LRP, stimuli-responsive
National Category
Polymer Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-133953DOI: 10.1002/pola.26942ISI: 000326018200018Scopus ID: 2-s2.0-84886593275OAI: oai:DiVA.org:kth-133953DiVA: diva2:664270
Funder
Knut and Alice Wallenberg Foundation
Note

QC 20131114

Available from: 2013-11-14 Created: 2013-11-14 Last updated: 2017-12-06Bibliographically approved

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