聚醚砜的磺化及表征  

Sulphonation and Characterization of Polyethersulphone(PES)

作　　者：吕慧娟[1] 申连春[1] 王彩霞[1] 蒋大振[1] 

机构地区：[1]吉林大学化学系

出　　处：《高等学校化学学报》1998年第5期833-835,共3页Chemical Journal of Chinese Universities

摘　　要：磺化是芳环聚合物改性的有效方法．引入的磺酸基以酸型、盐型和酯型存在，且可以继续制备其它衍生物．有关聚苯醚［１，２］、聚苯硫醚［３］、聚醚醚酮［４，５］和聚砜［６～８］的磺化研究和表征已有很多报道，这些聚合物引入磺酸基后亲水性增强，广泛用于制备反渗透膜...PES sulphonated with concentrated sulfuric acid and chlorosulfonic acid has been investigated. PES can 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. PES can also be sulphonated by chlorosulfonic acid at ambient temperature. There was a period of time at the beginning of the reaction during which PES is 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 FTIR and 1H NMR.

关 键 词：聚醚砜 磺化 磺化聚醚砜 表征 

分 类 号：O633.4[理学—高分子化学]