✦ LIBER ✦

Luminescence studies in polymers—VIII Poly-1-vinylnaphthalene and its copolymers with methylmethacrylate: Flourescence yield and life-time as a function of temperature in solution

✍ Scribed by C. David; M. Piens; G. Geuskens

Publisher: Elsevier Science
Year: 1976
Tongue: English
Weight: 410 KB
Volume: 12
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(76)90027-6

No coin nor oath required. For personal study only.

✦ Synopsis

Combining the measurement of fluorescence yield and decay-time as a function of temperature, the activation energies and frequency factors corresponding to several photophysical processes have been determined for solutions of poly-l-vinylnaphthalene and its copolymers with methylmethacrylate. The results are discussed in relation to copolymer composition and compared with those reported in the literature for model compounds. Excimer dissociation is found to be unimportant in the polymeric systems. This is tentatively assigned to a lower value of the frequency factor corresponding to excimer dissociation.

📜 SIMILAR VOLUMES

Luminescence studies in polymers—XI: Ace

Luminescence studies in polymers—XI: Acenaphthylene polymers and copolymers with methylmethacrylate: polarization, yield and decay of the fluorescence as a function of temperature in solution

✍ C. David; D. Baeyens-Volant; M. Piens 📂 Article 📅 1980 🏛 Elsevier Science 🌐 English ⚖ 601 KB

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