中文摘要：

应用基质辅助激光解吸电离飞行时间质谱（MALDI-TOF MS）,以1,8,9-蒽三酚为基质,无阳离子添加剂,对两种芳香环状聚酮低聚物的结构进行了确认,并研究了环状齐聚物不同聚合度组分的分布规律.实验结果表明,MALDI-TOF质谱是分析环状聚酮低聚物准确、快速的工具,芳香环状聚酮低聚物组分分布可以用缩聚高分子环化理论（Jacoson-Stockmayer Theory）进行解释.

英文摘要：

The structure and the distribution of two kinds of cyclic（arylene ketone） oligomers were successfully characterized by matrix-assisted laser desorption ionization time-of-flight mass spectrometry（MALDI TOF MS） technique.The results indicated that MALDI-TOF MS was a rapid and accurate means to analyze cyclic（arylene ketone） oligomers and the distribution of cyclic（arylene ketone） oligomers could be accorded with Jacoson-Stockmayer theory well.