Journal
POLYMER CHEMISTRY
Volume 3, Issue 10, Pages 2920-2927Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2py20421e
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Funding
- KTH
- ERC Advanced Grant, PARADIGM [246776]
- Czech Science Foundation (GACR) [P205/12/1702, P106/12/1451, P205/12/1451]
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The zwitterionic carboxybetaines, (3-methacryloylamino-propyl)-(2-carboxy-ethyl)-dimethyl-ammonium (CBMAA-3) and (3-acryloylamino-propyl)-(2-carboxy-ethyl)-dimethyl-ammonium (CBAA-3), were successfully grafted from a galactoglucomannan macroinitiator. The macroinitiator was prepared from the hemicellulose acetylated galactoglucomannan functionalised with alpha-bromoisobutyric acid. The polymerisation of the betaines was efficiently carried out by a Cu(0) wire catalysed single electron-transfer living radical polymerisation (SET-LRP) in aqueous solution yielding water-soluble graft copolymers and nearly pseudo-first order kinetics suggesting a good degree of control over the polymerisation process. The graft copolymers spontaneously self-assembled in aqueous solution into well-defined nanoparticles highly stable in aqueous media.
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