表面活性离子液体ESS的合成及性能研究毕业论文
2022-02-13 20:05:49
论文总字数:18227字
摘 要
为确证合成表面活性离子液体[ETMIM][C12H25SO3]的最适条件,调配1-甲基咪唑(1-Methylimidazole)、氯醋酸乙酯(Ethyl chloroacetate)、十二烷基磺酸钠(Sodium Laurylsulfonate)的摩尔比,转换反应溶剂,改变反应温度,调整反应时间,以得出合成表面活性离子液体ESS得到最高产率的最适条件。反应条件为:1-甲基咪唑:氯乙酸乙酯=1.2:1,温度达到100℃,时间达到6h;十二烷基磺酸钠:[ETMIM]Cl=1.2:1,温度达到50℃,时间达到4h,可获得最高产率的[ETMIM][C12H25SO3]。
利用核磁共振氢谱(1HNMR)确证合成[ETMIM][C12H25SO3]的结构;使用全自动表面张力测定仪、电导率仪测出[ETMIM][C12H25SO3]水溶液的界面张力值、电导率值,以确证[ETMIM][C12H25SO3]水溶液开始产生胶束的最低浓度,即临界胶束浓度(cmc值)。研究发现:从测得的界面张力值和电导率值的曲线图可知:[ETMIM][C12H25SO3]水溶液的cmc值分别为5.45mmol/L和5.51mmol/L。
关键词:合成 表面活性离子液体(SAILs) 电导率 表面张力
Synthesis and Properties of Surface Active Ionic Liquid ESS
Abstract
In order to determine the optimum condition for the synthesis of surface-active ionic liquid [ETMIM][C12H25SO3], the molar ratio of the 1-Methyl imidazole, Ethyl chloroacetate and Sodium Laurylsulfonate is adjusted; Change the reaction solvent, change the reaction temperature, adjust the reaction time, was adopted. The optimum conditions for obtaining the highest yield of the synthetic surfactant ionic liquid ESS were obtained. When the ratio of 1-methyl imidazole and ethyl chloroacetate was 1.2:1, the temperature reached 100°C, the time reached 6h; and when the amount of sodium dodecyl sulfate and [ETMIM]Cl material was 1.2:1, the temperature reached 50°C and the time reached 4h.The highest yield of [ETMIM][C12H25SO3] could be obtained.
The structure of [ETMIM][C12H25SO3] was confirmed by 1HNMR; Using a fully automatic surface tension tester and conductivity meter to measure the interfacial tension and conductivity values of the [ETMIM][C12H25SO3] aqueous solution; So as To confirm the minimum concentration of micelles produced by the [ETMIM][C12H25SO3] aqueous solution, the critical micelle concentration (cmc value). The study found that: From the measured interfacial tension values and conductivity values of the graph shows:[ETMIM][C12H25SO3] aqueous solution cmc values were 5.45mmol / L and 5.51mmol / L.
Key Words: synthesis; Surface active ionic liquid(SAILs); Conductivity; Surface Tension
目 录
摘 要 I
Abstract II
目 录 III
第一章 前 言 1
1.1选题背景 1
1.2离子液体(ILs) 1
1.2.1离子液体(ILs)的简介 1
1.2.2离子液体的分类 1
1.2.3离子液体的表面活性 2
1.2.4离子液体的性质 2
1.2.5离子液体的合成 2
1.2.6离子液体的应用 3
1.3 表面活性离子液体(SAILs) 3
1.3.1 SAILs的种类 3
1.3.2 SAILs的合成 4
1.4 表面活性离子液体(SAILs)的应用 5
1.5本文思路 6
第二章 实验部分 7
2.1 实验药品和仪器 7
2.1.1实验药品 7
2.1.2实验仪器 7
2.2实验的合成方法和步骤 8
2.2.1 探索[ETMIM][C12H25SO3]合成的最佳条件 8
2.3测试途径 11
2.3.1 测量核磁共振氢谱 11
2.3.2 表面张力γ的测量 11
2.3.3 电导率的测量 11
第三章 结果与分析 12
3.1 探索合成[ETMIM][C12H25SO3]的最适条件 12
3.1.1 第一步:[ETMIM]Cl的合成 12
3.1.2 第二步:[ETMIM][C12H25SO3]的合成 12
3.2 核磁共振氢谱 14
3.3表面张力的测量 16
3.4电导率的测量 17
第四章 结论与展望 18
4.1 结论 18
4.2 展望 18
参考文献 19
致谢 22
第一章 前 言
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