J. Phys. Chem. B 2007, 111, 5587-5595
5587
Photoresponsive Viscosity and Host-Guest Association in Aqueous Mixtures of Poly-Cyclodextrin with Azobenzene-Modified Poly(acrylic)acid G. Pouliquen, C. Amiel, and C. Tribet* Physico-chimie des Polyme` res et Milieux Disperse´ s, UMR 7615 CNRS and UniVersity Paris 6, ESPCI, 10 rue Vauquelin, F-75005 Paris, France ReceiVed: January 30, 2007; In Final Form: March 12, 2007
In aqueous solutions, β-cyclodextrin (CD) and cyclodextrin-containing polymers (PolCD) associate with azobenzene-modified polyacrylate (AMP). Inclusion complexes in solution of CD (or PolCD) and AMP, and the viscosity of these mixtures, have been studied as a function of the composition of AMP and concentrations of samples. AMPs are random copolymers containing a low fraction of a light-responsive hydrophobic moieties (
