| 三硅氧烷咪唑离子液体表面活性剂的合成与表面活性 |
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| 引用本文： | 曹洋,杜志平,王国永.三硅氧烷咪唑离子液体表面活性剂的合成与表面活性[J].日用化学工业,2011,41(6):391-394. |
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| 作者姓名： | 曹洋 杜志平 王国永 |
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| 作者单位： | 中国日用化学工业研究院,山西 太原,030001 |
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| 基金项目： | 国家自然科学基金资助项目(21073234,21103228,21143401);山西省青年科技基金资助项目(2009021012) |
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| 摘 要： | 以氯丙基甲基二甲氧基硅烷和六甲基二硅氧烷为原料,在浓硫酸催化下合成了氯丙基三硅氧烷,再与1-甲基咪唑进行季铵化反应,制备了三硅氧烷咪唑离子液体表面活性剂.用傅里叶红外光谱仪以及氢谱和碳谱核磁共振仪表征了产物的结构；并对其临界胶束浓度(cmc)及表面张力(γ)进行了测定.结果表明,与长链烷基咪唑类离子液体表面活性剂相比,三硅氧烷咪唑离子液体表面活性剂具有更好的表面活性,其cmc为15.5 mmol/L,γcmc为24.0 mN/m.
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| 关 键 词： | 有机硅 离子液体 合成 表面活性 |
Synthesis and surface activity of trisiloxane-based imidazolium ionic liquid surfactant |
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| CAO Yang
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DU Zhi-ping
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WANG Guo-yong.Synthesis and surface activity of trisiloxane-based imidazolium ionic liquid surfactant[J].China Surfactant Detergent & Cosmetics,2011,41(6):391-394. |
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| Authors: | CAO Yang DU Zhi-ping WANG Guo-yong |
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| Affiliation: | (China Research Institute of Daily Chemical Industry,Taiyuan,Shanxi 030001,China) |
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| Abstract: | A kind of trisiloxane-based imidazolium ionic liquid surfactant was synthesized via a two-step method.First step was synthesis of 3-(3-chloropropyl)-1,1,1,3,5,5,5-heptamethyltrisiloxane with(3-chloropropyl)dimethoxymethylsilane and hexamethyldisiloxane as starting materials using concentrate sulfuric acid as catalyst,and then,trisiloxane-based imidazolium ionic liquid surfactant was obtained by quaternization of 3-(3-chloropropyl)-1,1,1,3,5,5,5-heptamethyltrisiloxane with 1-methylimidazole.The molecular structure of the trisiloxane-based imidazolium ionic liquid surfactant was characterized with FTIR,1HNMR and 13CNMR;and its critical micelle concentration(cmc) as well as surface tension at cmc(γcmc) was measured as 15.5 mmol/L and 24.0 mN/m respectively. |
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| Keywords: | siloxane ionic liquid synthesis surface activity |
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