Chemiluminescence spectra of natural rubber, chloroprene rubber and ethylene propylene diene rubber were measured in N2 and in air with a multichannel Fourier-transform chemiluminescence spectrometer. Samples were measured before and after γ-ray irradiation in air and in the absence of O2. A strong emission from ethylene propylene diene rubber was observed in air only when the sample was γ-irradiated in air. The observed spectrum was separated into two bands at 678 and 523 nm because of peroxidic compounds and excited carbonyl groups, respectively.
- Takayuki Hironiwa
- Taishi Yamada
- Munetaka Nakata
