Hybrid block copolymers incorporating oligosasaccharides and D synthetic blocks grown by controlled radical polymerization

Jérôme Lohmann, Clément Houga, Hugues Driguez*, James Wilson, Mathias Destarac, Sébastien Fort, Jean François Le Meins, Redouane Borsali, Daniel Taton, Yves Gnanou

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Hybrid block copolymers incorporating a naturally occuring oligosaccharide and a vinylic block were synthezized by chemical modification of the anomeric chain-end of the oligosaccharide with a purposely designed coupling agent, followed by controlled radical polymerization (CRP). In this way, a series of dextran-b-polystyrene block copolymers were obtained using atom transfer radical polymerization (ATRP) as the CRP method. In this case, protection of the OH groups of dextran was required. The resulting diblocks were found to self-assemble into various morphologies (e.g. spherical micelles or vesicles) depending on the PS content. Secondly, xylo-oligosaccharides obtained by controlled enzymatic degradation of Tamarind kern powder were subsequently modified by a xanthate moiety without protection of the OH groups for further polymerization of acrylamide (Am) by MADIX. Well defined Xyloglucan-b-PAm block copolymers could be thus obtained.

Original languageEnglish (US)
Pages (from-to)231-240
Number of pages10
JournalACS Symposium Series
Volume1023
DOIs
StatePublished - Aug 13 2009

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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