Dynamical properties of semidilute solutions of hydrogen-bonded supramolecular polymers - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review E : Statistical, Nonlinear, and Soft Matter Physics Année : 2007

Dynamical properties of semidilute solutions of hydrogen-bonded supramolecular polymers

Résumé

The dynamical properties of semidilute solutions of supramolecular polymers formed from molecular recognition directed association between monomers bearing complementary hydrogen bonding groups were investigated by rheological and dynamic light scattering experiments. The steady-state flow curves showed a shear banding type instability, namely the occurrence of a stress plateau σp above a critical shear rate ˙γc. The values of σp and ˙γc were found to be of the same order of magnitude as those of the elastic plateau modulus and the inverse stress relaxation time, respectively. The above features are in agreement with the theoretical predictions based on the reptation model. Dynamic light scattering experiments showed the presence in the autocorrelation function of the concentration fluctuations of a slow viscoelastic relaxation process that is likely to be of Rouse type.
Fichier non déposé

Dates et versions

hal-00202866 , version 1 (08-01-2008)

Identifiants

Citer

Eric Buhler, Sauveur-Jean Candau, Elena Kolomiets, Jean-Marie Lehn. Dynamical properties of semidilute solutions of hydrogen-bonded supramolecular polymers. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2007, 76 (6), pp.061804. ⟨10.1103/PhysRevE.76.061804⟩. ⟨hal-00202866⟩
17 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More