The formation of conjugated double bonds in polyvinylchloride (PVC) films by ultraviolet (UV) irradiation is analyzed using an in situ laser-monitoring technique we have developed to measure changes in transmittance of thin UV-irradiated PVC films. Conjugated polyenes of different lengths are produced by laser irradiation at 193 and 248-nm wavelengths. This technique promises to have broader applications in the study of polymer reaction mechanisms and kinetics. (C) 2000 John Wiley & Sons, Inc. [References: 14]
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机译：使用我们开发的用于测量薄的紫外线辐照的PVC薄膜的透射率变化的原位激光监控技术，分析了紫外线（UV）辐照在聚氯乙烯（PVC）薄膜中共轭双键的形成。通过在193和248 nm波长处进行激光辐照，可以生产出不同长度的共轭多烯。该技术有望在聚合物反应机理和动力学研究中有更广泛的应用。 （C）2000 John Wiley＆Sons，Inc. [参考：14]
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