CAJ | 학술논문

五种对苯撑乙烯低聚物的光氧化降解反应表明：给电子基团能促进其光氧化降解，而吸电子基团却能提高它们的光稳定性。这为用分子修饰的方法提高对苯撑乙烯类发光材料的稳定性提供了理论基础。在自敏化和染料敏化的光氧化降解反应中，五种低聚物的降解速率顺序完全一致，意味着单线态氧(1O2)是其光氧化降解反应过程中的主要中间体。ESR自旋捕获实验进一步证实了上述论断。
오충대분탱을희저취물적광양화강해반응표명：급전자기단능촉진기광양화강해，이흡전자기단각능제고타문적광은정성。저위용분자수식적방법제고대분탱을희류발광재료적은정성제공료이론기출。재자민화화염료민화적광양화강해반응중，오충저취물적강해속솔순서완전일치，의미착단선태양(1O2)시기광양화강해반응과정중적주요중간체。ESR자선포획실험진일보증실료상술론단。
The rate and mechanism of photooxidative degradation of five phenylenevinylene oligomers were investigated. The degradation rate increases upon the incorporation of electron-donating groups and decreases upon the incorporation of electron-accepting groups on the oligomers, which implied that the stability of phenylenevinylene oligomers could be improved by decoration with electron-accepting groups on them. Singlet oxygen (1O2) as the reactive intermediate in photolysis systems of phenylenevinylene oligomers was directly confirmed by electron spin resonance (ESR) spin trapping experiments.