Photochemistry in polymer solids—4. On the intensity dependence of non-exponential decay of benzophenone phosphorescence in poly(methyl methacrylate)

✍ Scribed by K. Horie; I. Mita

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 171 KB
• Volume: 20
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(84)90124-1

✦ Synopsis

Change in the intensity of the irradiation laser pulse did not influence the non-exponential decay profile of benzophenone phosphorescence in poly(methyl methacrylate) at 20 ' ~. This result is incompatible with the biphotonic triplet-triplet annihilation process, but supports the diffusion-controlled dynamic quenching mechanism including non-equilibrium w~ term.