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Self-assembling zwitterionic carboxybetaine copolymers via aqueous SET-LRP from hemicellulose multi-site initiators
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- Edlund, Ulrica (author)
- KTH,Fiber- och polymerteknologi
- Rodriguez-Emmenegger, Cesar (author)
- Brynda, Eduard (author)
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- Royal Society of Chemistry (RSC), 2012
- 2012
- English.
- In: Polymer Chemistry. - : Royal Society of Chemistry (RSC). - 1759-9954 .- 1759-9962. ; 3:10, s. 2920-2927
- Journal article (peer-reviewed)
Abstract
Subject headings
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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.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- Transfer Radical Polymerization
- Poly(Ethylene Oxide)
- Surface Modification
- Raft Polymerization
- Methyl Acrylate
- Cu(0) Wire
- Cellulose
- Brushes
- Phosphorylcholine
- 25-Degrees-C
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- ref (subject category)
- art (subject category)
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- Royal Institute of Technology
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