高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (5): 833.

• 研究简报 • 上一篇    

聚醚砜的磺化及表征

吕慧娟, 申连春, 王彩霞, 蒋大振   

  1. 吉林大学化学系, 长春, 130023
  • 收稿日期:1997-01-01 出版日期:1998-05-24 发布日期:1998-05-24
  • 通讯作者: 吕慧娟,女,55岁,副教授.
  • 作者简介:吕慧娟,女,55岁,副教授.

Sulphonation and Characterization of Polyethersulphone(PES)

LÜ Hui-Juan, SHEN Lian-Chun, WANG Cai-Xia, JIANG Da-Zhen   

  1. Department of Chemistry, Jilin University, Changchun, 130023
  • Received:1997-01-01 Online:1998-05-24 Published:1998-05-24

关键词: 聚醚砜, 磺化, 磺化聚醚砜

Abstract: PES sulphonated with concentrated sulfuric acid and chlorosulfonic acid has been investigated. PEScan not be sulphonated at ambient temperature, but under heating condition it can be sulphonated by concentrated sulfuric acid. The sulphonation degree and degradation of polymer increase with the increase of the temperature and the time. PEScan also be sulphonated by chlorosulfonic acid at ambient temperature. There was a period of time at the beginning of the reaction during which PESis hardly sulphonated if concentrated sulfuric acid was used as solvent. And then, velocity of sulphonation increases obviously. When dichloromethane was used as solvent, the similar results did not exist. Moreover velocity of sulphonation does not change obviously. Structure and properties of sulphonated PES were characterized by means of FTIRand 1H NMR.

Key words: Polyethersulphone, Sulphonation, S-PES

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