用傅立叶变换红外光声光谱(FT-IR-PAS)方法研究了本体聚合聚丙烯粉末的紫外光氧化.结果表明,光氧化主要发生在样品表面,生成过氧化物、酮、酸、酯等氧化产物.氧化程度随光照时间的增加而不断深入和加强.同时发现和解释了光氧化中聚丙烯的结晶度的变化.
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