Internal structure of hyaluronic acid(carboxymethylcellulose)/surfactant complexes – relation to rheological properties
The polyanion hyaluronic acid (HA) and oppositely charged surfactant tetradecyltrimethylammonium bromide (TTAB) are interacting strongly in aqueous media due to electrostatic attraction and the release of counterions. The structure of the formed complexes depends on the mixing ratio and results in dramatic changes in viscosity. This structure-macroscopic behaviour relation shall be investigated by contrast matching either TTAB or HA, where both components will be employed in their deuterated version as well. Thereby the contribution of both components to the complex structure can be addressed in a unique fashion not possible by any other method. Further comparison to a structurally related polyanion (CMC) will then allow to address the question of the effect of polyanion architecture. This shall lead to a comprehensive structural picture for changes in viscosity in such systems based on their mesoscopic structure, in particular how they are controlled by structure and properties of the polyelectrolyte contained.
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BUCHOLD Philipp; GRADZIELSKI Michael and SCHWEINS Ralf. (2015). Internal structure of hyaluronic acid(carboxymethylcellulose)/surfactant complexes – relation to rheological properties. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-12-435
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