| Titre : |
study of semidilute polymer solutions under shear by SANS, SALS and rheometry |
| Type de document : |
texte imprimé |
| Année de publication : |
1998 |
| Article en page(s) : |
p. 345-348 |
| Langues : |
Anglais (eng) |
| Catégories : |
Diffusion aux petits angles
Diffusion de la lumière aux petits angles
Phtalate de dioctyle
Polystyrène
Rhéologie
Solutions de polymère
|
| Index. décimale : |
668.9 Polymères |
| Résumé : |
We study the shear induced structure of semi dilute polymer solutions nears the theta point. It can be seen by Small Angle Neutron Scattering (submicronic sizes), even for unentangled solutions. For the entangled solutions studied here, the objects coarsen in size for large shear or low temperature. They become large enough to be seen by light scattering, and even by : in other words the structure is not a simple function of the Weissenberg number, but also of the distance to the coexistence curve (phase separation) in the concentration temperature diagram. |
| Note de contenu : |
- Small angle scattering, butterfly patterns and the induced structure
- Is there a time temperature superposition for the shear induces structure ? : Relation with light scattering - Relation with the rheological quantities
- Role of entanglements
|
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36538 |
in LES CAHIERS DE RHEOLOGIE > Vol. XVI, N° 1 (10/1998) . - p. 345-348
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study of semidilute polymer solutions under shear by SANS, SALS and rheometry in LES CAHIERS DE RHEOLOGIE, Vol. XVI, N° 1 (10/1998)
