高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (4): 652.

• 论文 • 上一篇    下一篇

MALDI-TOF质谱表征聚芳醚酮环状低聚物及其组分分布

姜洪焱, 陈天禄, 齐颖华, 徐纪平   

  1. 中国科学院长春应用化学研究所, 长春, 130022
  • 收稿日期:1996-12-23 出版日期:1998-04-24 发布日期:1998-04-24
  • 通讯作者: 陈天禄
  • 作者简介:姜洪焱,男,29岁,博士.
  • 基金资助:

    国家自然科学基金

Characterization of Cyclic(aryl ether ketone)s by Matrix-assisted Laser Desorption Ionization-time of Flight Mass Spectrometry

JIANG Hong-Yan, CHEN Tian-Lu, QI Ying-Hua, XU Ji-Ping   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022
  • Received:1996-12-23 Online:1998-04-24 Published:1998-04-24

摘要: 应用介质辅助激光解吸离子化飞行时间质谱(MALDI-TOFMS),以二羟基苯甲酸为介质、N2(337nm)为激光源,对两种聚芳醚酮环状低聚物的结构进行了确认,研究了环状低聚物不同聚合度组分的分布规律,并且与GPC质量分析法作了比较,实验结果表明,MALDI-TQF质谱是分析环状低聚物的准确、快速的工具之一.

关键词: 聚芳醚酮环状低聚物, MALDI-TOF质谱, 环状低聚物的分布

Abstract: Matrix-assisted laser desorption ionization-time of flight mass spectrometry(MALDI-TOF MS) was used to identify cyclic(aryl ether ketone) oligomers, using 2,5-dihydroxybenzoic acid as a matrix, and Na+ and K+ as cationization agents. The existence of different ring-sized cyclic oligomers up to 9 and their distribution were determined and compared with GPCresults. The results indicated that MALDI-TOF MSwas a powerful and rapid analytical tool for the cyclic oligomers.

Key words: Cyclic(aryl ether ketone) oligomers, MALDI-TOF MS, Distribution of cyclic oligomers

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