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Dual functionality of amphiphilic 1-alkyl-3-methylimidazolium hydrogen sulfate ionic liquids: surfactants with catalytic function

机译:两亲1-烷基-3-甲基咪唑硫酸铵离子液体的双官能度:催化功能的表面活性剂

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摘要

A series of amphiphilic 1-alkyl-3-methylimidazolium hydrogen sulfate ionic liquids were synthesized. Acidic hydrogen sulfate ionic liquids with the alkyl chains C-6-C-14 are characterized by good surface properties. Their surface properties (adsorption and micellization parameters, degree of ionization of micelles, Krafft temperatures and thermodynamic parameters) were determined. Synthesized ionic liquids were applied as a co-catalyst in an oxirane ring opening reaction in epoxidized fatty acid methyl esters (FAME). Their co-catalytic activities were determined and discussed as a function of their structure and surface properties. It was found that the co-catalytic properties, both conversion and selectivity, of alkylimidazolium hydrogen sulfate ionic liquids noticeably depended on the alkyl chain lengths, and in consequence their properties.
机译:合成了一系列两亲1-烷基-3-甲基咪唑硫酸铵离子液体。 具有烷基链C-6-C-14的酸性硫酸氢离子液体的特征在于良好的表面性质。 确定其表面性质(吸附和胶束化参数,胶束的电离程度,KRAFFT温度和热力学参数)。 在环氧化脂肪酸甲酯(FAME)中,在环氧化脂肪酸甲酯(FAME)中施加合成的离子液体作为氧氧铝开环反应的助催化剂。 确定它们的共催化活性并作为其结构和表面性质的函数讨论。 发现辅助催化性质,转化性和选择性,烷基咪唑硫酸氢硫酸氢离子液体明显依赖于烷基链长度,并因此的性质。

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  • 来源
    《RSC Advances》 |2016年第14期|共11页
  • 作者单位

    Inst Heavy Organ Synth Energetykow 9 PL-47225 Kedzierzyn Kozle Poland;

    Gdansk Univ Technol Fac Chem Dept Chem Technol G Narutowicza 11-12 PL-80233 Gdansk Poland;

    Inst Heavy Organ Synth Energetykow 9 PL-47225 Kedzierzyn Kozle Poland;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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