A~raet--Polyvinylcarbazole (PVCa) films and solutions emit normal and excimer fluorescence between 77 and 425 K. The absolute (IM and Iv) and relative (I~/1o) intensities emitted strongly depend on temperature. The usual U-shaped curve is obtained for log IM/Io as a function of lIT in the case of po
Luminescence studies in polymers—I: Temperature effect on polyvinylnaphthalene and polyacenaphthylene fluorescence
✍ Scribed by C. David; M. Piens; G. Geuskens
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 500 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0014-3057
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The fluorescence spectra of amorphous atactic, amorphous isotactic and crystallized isotactic polystyrene films have been compared. The effect of chain orientation has also been analysed on amorphous atactic samples. The results show that the fluorescence yield increases with crystallinity at room t
For polymers of aeenaphthylene and copolymers with methylmethacrylate measurement of the polarization of the fluorescence in glassy solution at 77 K has been combined with analysis of the intensity and decay of excimer and monomer fluorescence over a large temperature range. Activation energies and