介绍了聚氯乙烯（PVC）的紫外光降解机理。
This paper introduced the degradation mechanism of polyvinyl chloride(PVC) under the irradiation of ultraviolet light.
阐述了聚氯乙烯的紫外光降解和稳定机理，以及聚氯乙烯光降解研究中最新的表征手段。
It summarized the mechanisms of ultra-violet degradation and stabilization of poly (vinyl chloride) (PVC) as well as the latest characterization methods in study of photodegradation of PVC.
PBO溶液在氮气气氛中对紫外光相对稳定，而在氧气中光降解速率很快。
The results also show that PBO solution is stable under nitrogen, whereas the speed of photodegradation is fast when environment atmosphere is oxygen.
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