聚苯乙烯光氧化过程的研究

Study on thc Photooxidation Process of Polystyrene

本文通过对聚苯乙烯模型化合物2-苯基丁烷(简称2-PB)的光氧化过程和产物与聚苯乙烯的光氧化产物进行比较,利用质谱和红外光谱的数据证明了聚苯乙烯光氧化主链断裂有两种形式;其一是主链断裂氧化成苯酚和联苯二酚类的低分子化合物,其二是主链断裂后氧化成为脂肪酮类和带有苯基类的低分子化合物.

In this paper,the product and the photooxidation process of polytyrene model compound-2-benzenyl butane (2-PB)are compared with the photooxidation product of polytyrene.Therefore,two forms of major chain pholooxidation breakage of polytyrene are proved with the help of the data of mass and in- frared spectrums.One is that the major-chain breakage is oxidized into low molecular compounds of phynol and 2-diphenol.The other is that the major chain breakage is oxidized into low molecular compounds with carbonyl and phenyl groups.