杭州师范大学学报（自然科学版）2025，Vol.24Issue(4)：398-405,8.DOI:10.19926/j.cnki.issn.1674-232X.2024.10.151
Lewis酸改性磺酸树脂的制备与性能研究
Preparation and Performance Study of Lewis Acid-modified Sulfonic Acid Resins
摘要
Abstract
To screen modified resins with superior catalytic performance,this study employed two Lewis acids(FeCl3 and SnCl4)to modify 731 sulfonic acid resin.Successful modification of the sulfonic acid resin by FeCl3 was confirmed through characterization techniques such as infrared spectroscopy(FTIR),thermogravimetric analysis(TGA),and scanning electron microscopy(SEM).Single-factor experiments revealed the optimal reaction conditions for FeCl3-modified 731 sulfonic acid resin:FeCl3 solution volume at 5 times the resin volume,concentration of 0.06 mol/L,reaction temperature of 80℃,and reaction time of 5 h.Under these conditions,the maximum iron mass fraction in the modified resin reached 3.08％.The research demonstrated that the esterification catalytic activity of the modified resin exhibited a positive correlation with its iron mass fraction.The FeCl3-modified resin exhibited significantly higher esterification rates than the unmodified resin in catalyzing both mono-and polycarboxylic acid esterification reactions.Additionally,the modified resin displayed excellent stability,with no significant decline in catalytic activity after six repeated uses.关键词
磺酸树脂/三氯化铁/改性/酯化/催化活性Key words
sulfonic acid resin/ferric chloride/modification/esterification/catalytic activity分类
化学化工引用本文复制引用
赵志刚,陶振宇,单振伟,黄慧丹..Lewis酸改性磺酸树脂的制备与性能研究[J].杭州师范大学学报（自然科学版）,2025,24(4):398-405,8.基金项目
国家自然科学基金项目(82204238) （82204238）
国家级大学生创新创业训练计划项目(201910368041,S202210368067,S202210368073) （201910368041,S202210368067,S202210368073）
安徽省高校自然科学研究项目(KJ2021A0849). （KJ2021A0849）
