Shedding light upon macromolecular behaviour: Luminescence studies of polymers

Abstract

AbstractIn this paper the use of two time‐resolved luminescence techniques in the study of polymer behaviour is illustrated.Time‐resolved anisotropy measurements, TRAMS, have been used to study macromolecular mobilities both in solution and bulk phases. The first use of TRAMS involving phosphorescent labels in the study of synthetic polymers is reported and the potential of the technique for future applications in polymer science is discussed.Time‐resolved energy transfer has been used to study polymer compatibility and interdiffusion in blends of PS‐PMMA. The data offer clear evidence of the fact that the local concentration of chain termini in phase‐separated systems is enriched in the interphase regions compared to that in the two bulk phases of the blend.