Gas emission from chlorinated polymers induced by synchrotron radiation
Gas emission from chlorinated polymers induced by synchrotron radiation
复制标题
同步辐射引起的氯化聚合物的气体排放
DOI：
10.1016/s0141-3910(00)00151-8
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发表时间：
2001
影响因子：
5.9
通讯作者：
G. G. B. D. Souza
中科院分区：
文献类型：
--
作者：
C. Castro;A. Azevedo;E. Monteiro;R. R. Pinho;G. G. B. D. Souza
氯化聚合物，聚（氯乙烯）（PVC），聚（偏二氯乙烯）（PVDC），和乙烯-三氟氯乙烯共聚物（E-CTFE）已被照射与白色光从巴西同步辐射光源（LNLS）。通过质谱分析聚合物与光子的相互作用产生的挥发性产物，并研究其强度作为光子通量的函数。结果表明，HCl，最强烈的发射气体，可用作聚合物的辐射敏感性的指示。在所研究的聚合物中，发现PVDC对白色光最敏感。
Chlorinated polymers, poly(vinyl chloride) (PVC), poly(vinylidene chloride) (PVDC), and ethylene-chlorotrifluoroethylene copolymer (E-CTFE) have been irradiated with white light from the Brazilian synchrotron light source (LNLS). The volatile products generated by the interaction of the polymers with the photons were analysed by mass spectrometry and their intensities studied as a function of the photon flux. The results show that HCl, the most intensely emitted gas, may be used as an indication of the sensitivity of the polymers to the radiation. Among the polymers investigated, PVDC was found to be the most sensitive to white light.