高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (5): 909.

• 论文 • 上一篇    下一篇

芳香环状低聚物组分分布与单体结构关系的研究

郭庆中, 陈天禄   

  1. 中国科学院长春应用化学研究所, 高分子物理与化学国家重点实验室, 长春 130022
  • 收稿日期:2002-04-19 出版日期:2003-05-24 发布日期:2003-05-24
  • 通讯作者: 陈天禄(1942年出生),男,研究员,博士生导师,主要从事开环聚合及功能高分子研究.E-mail:tlchen@ciac.jl.cn E-mail:tlchen@ciac.jl.cn
  • 基金资助:

    国家自然科学基金(批准号:20084001)

Studies on Relationship Between Component Distribution of Aryl Cyclic Oligomers and Its Monomer's Structure

GUO Qing-Zhong, CHEN Tian-Lu   

  1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
  • Received:2002-04-19 Online:2003-05-24 Published:2003-05-24

摘要: 根据Jacoson-Stockmayer(J-S)环化理论,应用基质辅助激光解吸离子化飞行时间质谱(MAIDL-TOFMS),对一系列芳香环状低聚物组分分布进行分析,研究了芳香环状低聚物的组分分布与单体结构的关系,结果表明,在芳香聚酯、聚膦酸酯及芳香聚醚环状低聚物系列中,Incn与Inn呈良好的线性关系,符合J-S理论分布,在环状聚酯及聚膦酸酯系列中,低聚物的组分分布受双酚单体的中心键角影响,单体的中心键角在100°~120°之间,其中心键角愈小,γ值愈大,而在聚醚系列中,在固定一种单体的前提下,环化物的组分分布受另一单体键角的影响与环状聚酯和聚膦酸酯相一致.

关键词: 芳香环状低聚物组分分布, 单体结构, MAIDL-TOFMS

Abstract: Based upon Jacoson-Stockmayer theory, matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) was used to analyze the component distribution of a series of cyclic aryl oligomers. The relationship between the component distribution of cyclic aryl oligomers and the monomer structure was investigated. The results indicated the distribution of cyclic aryl oligomers could be accorded with J-Stheory well. The effect of the bond angle of bisphenol monomer on the distribution of cyclic ester and phosphonate oligomers showed that the value of γ in J-Stheory decreased with the bond angle increasing from 100° to 120°. On the premise of a constant monomer, the distribution rule of cyclic aryl ether oligomers affected by the structure of another monomer was consistent with cyclic ester and phosphonate oligomers.

Key words: Component distribution of cyclic aryl oligomers, Structure of monomer, MALDI-TOF MS

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