关键词: 氧化, 光敏化, 苯乙酮, 聚丁二烯, 异丙醇, 光降解, 光稳定性, 磷光分析, 高分子, 量子产量

The problems of spectrum, quantum yield and lifetime of phosphorescence, photosensitization and photostabilization of polymeric acetophenone and its derivatives were studied. Results indicated that the photochem. and photophys. behavior of polymeric photosensitizer and photostabilizer maintain the original behavior of corresponding small mol. An optimum value of photosensitive group containing in polymeric chain existed due to T-T annihilation. In this case, the highest efficiency of sensitization and phosphorescence emission can be obtained in the series of photosensitizers. As for the photostabilizers, the more photostable group it contains in polymeric chain, the higher photostability it has.

Key words: OXIDATION, PHOTOSENSITIZATION, ACETOPHENONE, POLYBUTADIENE, ISOPROPANOL, LIGHT DEGRADATION, LIGHT STABILITY, PHOSPHOROMETRIC ANALYSIS, MACROMOLECULE, QUANTUM YIELD