Molecular phenomena in poly(ethersulphone) studied by fluorescence techniques

• Published in: Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 1999-01, Vol.54 (2), p.189-191
• Main Authors: Wysocki, S., Karolczak, S., Fouracre, R.A.
• Format: Article
• Language: English
• ISSN: 0969-806X; 1879-0895
• DOI: 10.1016/S0969-806X(98)00240-0

The molecular dynamics of polymeric matrices has a strong influence on dielectric relaxation processes, energy and charge transport phenomena as well as on phase transitions. The fluorescence technique has been used previously for the investigation of the aforementioned phenomena in amorphous and crystalline polymers (Winnik, [1986]). Two basic experimental methods are generally used: time-resolved spectroscopic measurements and decay of fluorescence anisotropy. Fluorescence studies cover macromolecules which contain chromophore groups incorporated into the main polymer chain, for example poly(ethersulphone) (PES), or those with pendant active groups as in polystyrene. Although a number of papers on photochemically induced effects can be found in the literature, there are only two concerned with fluorescence study of PES (Allen and McKellor, 1977; Rasoul et al., 1977). This paper presents the results of detailed investigations of the fluorescence properties of PES.