Self-assembling zwitterionic carboxybetaine copolymers via aqueous SET-LRP from hemicellulose multi-site initiators

QC 20120928
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.

Rodriguez-Emmenegger, Cesar (author)
Brynda, Eduard (author)
Albersson, Ann-ChristineKTH,Fiber- och polymerteknologi(Swepub:kth)u1mpsp3u (author)
KTHFiber- och polymerteknologi (creator_code:org_t)

In:Polymer Chemistry: Royal Society of Chemistry (RSC)3:10, s. 2920-29271759-99541759-9962

By the author/editor: Edlund, Ulrica; Rodriguez-Emmene ...; Brynda, Eduard; Albersson, Ann-C ...

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