Complexation of Terpyridine-Containing Dextrans: Toward Water-Soluble Supramolecular Structures
-
Wild, Andreas; Schubert, Stephanie; Schluetter, Florian; J\", ; urgen Vitz, ; Friebe, Christian; Hager, Martin D.; Winter, Andreas; Schubert, Ulrich S.
- Abstract:
- Dextran was functionalized with 6-(2,20:60,200-terpyridin-40-yloxy)-hexanoic acid using two
different ratios of terpyridine to dextran, leading to terpyridine-functionalized dextran esters
possessing different degrees of substitution (DS¼0.23–0.41). The intra- and intermolecular
complexation behavior of both functionalized biopolymers
was studied using FeII metal ions as well
as activated RuIII complexes. The complexation
behavior in the first case was studied by UV–
visible and viscosity titration experiments. In
the latter case, a water soluble comb-polymer
could be obtained when using a PEG- functionalized
terpyridine RuII moiety for complexation.
Moreover, nanoprecipitation was applied to
self-assemble the functionalized dextrans into
nanoparticles.
- Year:
- 2010
- Type of Publication:
- Article
- Journal:
- Macromolecular Rapid Communications
- Volume:
- 31
- Pages:
- 921 - 927