LIGHT-SCATTERING AND TIME-RESOLVED FLUORESCENCE STUDY OF THE BEHAVIOR OF A FLUORESCENTLY TAGGED POLY(METHYL METHACRYLATE) SAMPLE IN POLAR ORGANIC-SOLVENTS
Prochazka, K; Labsky, J; Tuzar, Z
| HERO ID | 1195171 |
|---|---|
| In Press | No |
| Year | 1995 |
| Title | LIGHT-SCATTERING AND TIME-RESOLVED FLUORESCENCE STUDY OF THE BEHAVIOR OF A FLUORESCENTLY TAGGED POLY(METHYL METHACRYLATE) SAMPLE IN POLAR ORGANIC-SOLVENTS |
| Authors | Prochazka, K; Labsky, J; Tuzar, Z |
| Journal | Langmuir |
| Volume | 11 |
| Issue | 5 |
| Page Numbers | 1584-1588 |
| Abstract | Steady-state and time-resolved fluorometry, quasielastic light scattering, and viscometry were used to study solution behavior of fluorescently tagged poly(methyl methacrylate) (PMMA) in binary mixtures of 1,4-dioxane with either 2,2,3,3-tetrafluoropropanol (TFP) or methanol. In 1,4-dioxane/TFP mixtures, which are good solvents for PMMA, an intermolecular association occurs. It was shown by time-resolved fluorometric measurements that the unusual behavior of PMMA in good solvent mixtures is due to association of nonpolar fluorophores in a polar medium. Association processes were not detected in systems containing a virtually identical, but nontagged PMMA sample in the same solvent mixtures. In mixed solvents of 1,4-dioxane/methanol, association of the tagged (as well as nontagged) sample does not take place. |
| Doi | 10.1021/la00005a028 |
| Wosid | WOS:A1995RA11000029 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science A1995RA11000029 |
| Is Public | Yes |
| Is Qa | No |