[1]郑好英,杜慷慨.氯球固载化离子液体的制备及其在乙酸异戊酯合成中的应用[J].华侨大学学报(自然科学版),2017,38(6):824-829.[doi:10.11830/ISSN.1000-5013.201606089]
　ZHENG Haoying,DU Kangkai.Synthesis of Supported Ionic Liquids With Chloromethyl Polystyrene and Its Application on Esterification for Isoamyl Acetate[J].Journal of Huaqiao University(Natural Science),2017,38(6):824-829.[doi:10.11830/ISSN.1000-5013.201606089]
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氯球固载化离子液体的制备及其在乙酸异戊酯合成中的应用()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第38卷
期数:
2017年第6期
页码:
824-829
栏目:
出版日期:
2017-11-20

文章信息/Info

Title:
Synthesis of Supported Ionic Liquids With Chloromethyl Polystyrene and Its Application on Esterification for Isoamyl Acetate
文章编号:
1000-5013(2017)06-0824-06
作者:
郑好英;  杜慷慨
华侨大学 材料科学与工程学院, 福建 厦门 361021
Author(s):
ZHENG Haoying;  DU Kangkai
College of Material Science and Engineering, Huaqiao University, Xiamen 361021, China
关键词:
固载化离子液体;  乙酸异戊酯;  催化性能;  酯化产率
Keywords:
supported ionic liquids;  isoamyl acetate;  catalyst performance;  esterification yield
分类号:
TQ426
DOI:
10.11830/ISSN.1000-5013.201606089
文献标志码:
A
摘要:
以氯球为载体,合成3种固载化离子液体［PS-Im-C3H6SO3H］［HSO4］, ［PS-Im-C3H6SO3H］［Cl］和［PS-Im-C3H6SO3H］［Br］;然后,以这3种固载化离子液体作为催化剂,以乙酸和异戊醇为原料,催化合成乙酸异戊酯.在具有最好催化性能的［PS-Im-C3H6SO3H］［Cl］的催化作用下,进一步探讨反应温度、催化剂用量、酸醇的量比和反应时间对酯化产率的影响.结果表明:以［PS-Im-C3H6SO3H］［Cl］为催化剂,酸醇的量比为2∶1,催化剂用量为酸醇总量的2.5%,反应温度为115 ℃,反应时间为2 h的优化条件下,乙酸异戊酯的产率最高可达96.8%,且催化剂重复使用6次后仍能保持较高的产率,稳定性较好.
Abstract:
Three supported ionic liquids, including ［PS-Im-C3H6SO3H］［HSO4］, ［PS-Im-C3H6SO3H］［Cl］ and ［PS-Im-C3H6SO3H］［Br］, were synthesized with chloromethyl polystyrene. Then, isoamyl acetate was synthesized using these three supported ionic liquids as catalyst and acetic acid and isoamyl alcohol as raw materials. Among them, ［PS-Im-C3H6SO3H］［Cl］ performed the best catalyst performance and was chosen for further study. The effects of reaction temperature, the dosage of catalyst, the molar ratio of acetic acid to isoamyl alcohol, and the reaction time on the yield were discussed. The results showed that the optimum conditions were: molar ratio of acetic acid to isoamyl alcohol was 2∶1, the quantity of catalyst was 2.5% of the total mass of reactants, the reaction temperature was 115 ℃, and the reaction time was 2 h. Under these conditions, ［PS-Im-C3H6SO3H］［Cl］ presented excellent catalyst efficacy and stability for synthesizing isoamyl acetate with the yield 96.8%, and the yield could still keep in a high value after reusing six times.

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备注/Memo

备注/Memo:
收稿日期: 2016-06-30
通信作者: 杜慷慨(1963-),男,副教授,博士,主要从事有机合成及配合物合成的研究.E-mail:dukang@hqu.edu.cn.
基金项目: 国家自然科学基金资助项目(21246008); 福建省科技计划重点资助项目(2013H0027); 福建省自然科学基金资助项目(2016J01060)
更新日期/Last Update: 2017-11-20