Energy Transfer from Chemiluminescent Species in Polymers

Energy Transfer from Chemiluminescent Species in Polymers
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聚合物中化学发光物质的能量转移

DOI：
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发表时间：
1967
期刊：
Nature
影响因子：
64.8
通讯作者：
V. Shliapintokh
V. Shliapintokh
中科院分区：
综合性期刊1区
文献类型：
--
作者：
D. Phillips;V. Anissimov;O. Karpukhin;V. Shliapintokh

文献摘要

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以前的工作1表明，在聚合物中，当引发剂分解成初级自由基时，在光谱的可见区域产生化学发光。当二环己基过氧二碳酸酯(P.C.)在聚碳酸酯、聚苯乙烯和聚甲基丙烯酸甲酯中分解，在λ=4500Å和λ=5300Å处观察到化学发光光谱的两个峰值，每个峰明显来自不同的基元反应。短波长的化学发光可能是由于引发剂中自由基的笼形歧化，得到了电子激发的环己酮分子的三重态。引起长波化学发光的基元反应的性质尚不清楚。
PREVIOUS work1 has shown that in polymers when initiators decompose into primary free radicals chemiluminescence is produced in the visible region of the spectrum. When dicyclohexylperoxy-dicarbonate (P.C.) decomposes in polycarbonate, polystyrene arid polymethyl methacrylate two maxima in the chemiluminescence spectra are observed at λ = 4500 Å and λ = 5300 Å, each apparently arising from a different elementary reaction. The short-wave-length chemiluminescence probably results from cage disproportionation of radicals from the initiator giving an electronically excited cyclohexanone molecule in its triplet state. The nature of the elementary reaction giving rise to the long-wave chemiluminescence is as yet unknown.