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A bulk photopolymerization of methyl methacryhte (MMA) initiated by 3-benzolocoumarin (Sen. 1)——triethylamine (TEA) coinitiated has been studied. Results were compared with a well known photoinitiator system, benzopbenone (BP)——TEA. The mechanism of the reaction has been discussed. 相似文献
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芳酮类敏化剂的最低激发三重态的特性对其光还原反应的能力往往起着决定性的作用。本文通过对五种香豆素酮类化合物发射光谱行为的研究,明确了它们激发三重态(T1)的特性,指出化合物3-苯甲酰基香豆素、对苯二甲酰基二香豆素和3,3-二香豆素甲酮的T1态主要为n,n*特性,而3-呋喃甲酰基香豆素及3-噻吩甲酰基香豆素的T1态具有n,n*和π,π*混合的特性。 相似文献