摘要
用连续激光荧光光谱研究了感光高分子酚醛都叠氮萘醌与激光相互作用的物理化学过程，发现了光化学反应的中间体分子及产物分子的荧光特征，提出了研究分子光分解宏观规律的激光荧光衰减法，得到了分子光分解的数学规律，
CW laser fluorescence spectroscopy was performed to study photodecomposion of phenodiazophthopuinonmolecule . In order to search the physical chemistry process of photodecomposion, reationships between fluorescence intensity, laser power and concenrtation of solution were investigated in detail. Three fluorescence peaks at 530, 607.9 and 691.7nm were found. The spectra pattern and relative inteffeity of those peaks changed dramatically with laser power, exposure time and concentration of solutions. Fluorescence charactedties of original molede and final product molede which peaks at 607.9 and 530nm respectivelly were recognized and intermediate molecule whose fluorescene peaks at 691.7nm was also found. By proposed 'CW laser fluorescence attenuation' method had recorded kinetic process of photodecomposion of original moleeule in time and the analysis formula of photoderemposion was consequentially obtained from nonlinear data fitting of the attenuate curve. Experiment results show that four extinction channels govern the physical chemistry proass of the photodecomposion: part of exciting photons makes some of original moleeul derempose and consequentially produce intermediate molecule and final product molecule , while the others excite some of original molecula , internediate molecula and final product molecula to fluoresce.
关键词
激光荧光光谱
光解规律
酚醛邻叠氮萘醌
Laser fluorescence spectroscopy
Molecule photodecomposion
Reqular pattern of decomposion Intermediate molecular
