The photo-degradation of PVC: Part I—Photo-degradation in air and nitrogen |
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| Authors: | Li Jian Zhou Dafei Zhao Deren |
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| Affiliation: | East China University of Chemical Technology, PO Box 399, Shanghai, People's Republic of China |
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| Abstract: | The photo-degradation of PVC in air and nitrogen has been studied. The activation energies were found to be Ea(air) = 19·6 kJmol−1 and Ea(nitrogen) = 32·1 kJmol−1. Double bonds, especially those at the ends of the PVC chains, are the main points at which initiation occurs in nitrogen. In air, carbonyl groups are the main cause of photo-degradation of PVC. |
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