Excimer fluorescence technique for study of polymer-segment mobility: applications to pyrene-labelled poly(methyl methacrylate) and poly(methyl acrylate) in solution
| Autor: | Robert E. Lowry, Francis W. Wang |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
chemistry.chemical_classification
Materials science Polymers and Plastics Organic Chemistry Polymer Poly(methyl acrylate) Photochemistry Excimer Poly(methyl methacrylate) Fluorescence spectroscopy Physics::Fluid Dynamics Condensed Matter::Soft Condensed Matter Viscosity chemistry.chemical_compound chemistry visual_art Materials Chemistry visual_art.visual_art_medium Physical chemistry Methyl methacrylate Methyl acrylate |
| Zdroj: | Polymer. 26:1046-1052 |
| ISSN: | 0032-3861 |
| DOI: | 10.1016/0032-3861(85)90227-7 |
| Popis: | An excimer fluorescence technique for the study of polymer-segment mobility has been developed and applied to pyrene-labelled poly(methyl methacrylate) and poly(methyl acrylate) polymers in solution. The results of the study have been interpreted in terms of Kramers' theory for the crossing of a potential barrier by a particle embedded in a viscous medium. The results show that the internal viscosity has a solvent-independent part and lead to an estimate of the dimensionless internal viscosity parameter introduced by Cerf. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|