Time-resolved fluorescence emission spectra of isotactic polystyrene/benzyl alcohol (iPS/BA) gel annealed at 318 K are reported. Time-resolved spectra and analysis of the fluorescence decay parameters on fresh gel, crystalline isotactic polystyrene together with data from the gel allow identification of two excimer components. Good agreement between the steady-state fluorescence emission spectrum with a theoretically predicted excimer emission spectrum, constructed on the basis of a mechanism that assumes the existence of separate domains, was observed. The dependence of the emission intensity of components is discussed in terms of the effectiveness of photo energy transfer and energy migration.
Посилання на статтю:
Correlation of steady-state and time-dependent studies of a two-phase isotactic polystyrene gel / Barbara Wandelt and David J. S. Birch and Robert E. Imhof // Polymer. – 1992. – Vol 33. – P. 3552-3557.