三氧化硫低温磺化法合成聚苯乙烯磺酸新工艺  

Synthesis of Polystyrene Sulfonic Acid Based on Sulfur Trioxide Sulfonation Method Under Low Temperature Using a Novel Process

作　　者：郭戈[1] 谢海泉[1] 杨荷[1] 马鹤[1] 钱磊[1] 

机构地区：[1]南阳师范学院化学与制药工程学院

出　　处：《光谱实验室》2011年第4期1849-1851,共3页Chinese Journal of Spectroscopy Laboratory

基　　金：河南省科技公关项目(092102210021)

摘　　要：利用三氧化硫在低温条件下与聚苯乙烯合成聚苯乙烯磺酸,反应速度快,副反应少,后处理简单,是一种绿色合成新工艺。实验结果发现,最佳的反应条件为:常压下-20℃时,以氯仿为溶剂,三氧化硫与聚苯乙烯按0.8∶1的质量比混匀,低速搅拌反应时间30m in,老化30 m in。溶剂与产物分离后,测定纯净产品的磺化度为92.45%。通过控制三氧化硫的添加量可以控制产品的磺化度。Polystyrene sulfonic acid was synthesized using sulfur trioxide and polystyrene in low temperature.The synthetic route was a green technology with fast reactive speed and fewer side products.The optimal reaction conditions were as follows：-20℃ under atmospheric pressure when the chloroform as solvent,sulfur trioxide and polystyrene by the mass ratio of 0.8∶1,low-speed stirring of 30min,aged of 30min.The sulfonation degree of the synthesized product is 92.45% after purification,and it could be controlled by the variations of mass ratio of sulfur trioxide.

关 键 词：聚苯乙烯磺酸 三氧化硫磺化法 低温反应 

分 类 号：O625.7[理学—有机化学] O657.33[理学—化学]