Abstract
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.
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References
Phillips, D., Anissimov, V., Karpukhin, O., and Shliapintokh, V., J. Amer. Chem. Soc., (in the press).
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PHILLIPS, D., ANISSIMOV, V., KARPUKHIN, O. et al. Energy Transfer from Chemiluminescent Species in Polymers. Nature 215, 1163–1165 (1967). https://doi.org/10.1038/2151163a0
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DOI: https://doi.org/10.1038/2151163a0
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