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首页> 外文期刊>RSC Advances >Tailoring self-assembly behavior of a biological surfactant by imidazolium-based surfactants with different lengths of hydrophobic alkyl tails
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Tailoring self-assembly behavior of a biological surfactant by imidazolium-based surfactants with different lengths of hydrophobic alkyl tails

机译：通过基于咪唑鎓的表面活性剂剪裁自组装行为，具有不同长度的疏水性烷基尾巴

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摘要

In this work, the effects of four imidazolium-based surfactants with different lengths of hydrophobic alkyl tails ([C(2)mim]Br, [C(8)mim]Br, [C(12)mim]Br, and [C(14)mim]Br) on the self-assembly behaviors of the biological surfactant sodium deoxycholate (NaDC) in sodium phosphate buffer (pH = 7) were investigated systematically. The microstructures and properties of NaDC/CnmimBr (n = 2, 8, 12, 14) mixed systems were characterized using transmission electron microscopy (TEM), field emission-scanning electron microscopy (FE-SEM), polarized optical microscopy (POM) observations, Fourier transform infrared (FTIR), X-ray powder diffraction (XRD) and rheological measurements. The roles of the hydrophobic chain length, the chiral rigid steroid center, and the electrostatic interaction for the evolution of phase behavior are clearly described. The results indicated that the long-chain imidazolium-based surfactants ([Cnmim] Br, n >= 8) weakened the gel of NaDC, while C(2)mimBr strengthened the gel behavior of NaDC and even can form microcrystals. The super-hydrogels formed by these systems may act as promising adsorbents for the removal of heavy-metal ions from industrial sewage.
机译：在这项工作中，四种基于咪唑鎓的表面活性剂具有不同长度的疏水性烷基尾尾（[C（2）MIM] Br，[C（8）MIM] Br，[C（12）MIM] Br，[C （14）系统地研究了在磷酸钠缓冲液（pH = 7）中的生物表面活性剂脱氧钠（NADC）的自组装行为的MIM] BR）。使用透射电子显微镜（TEM），场发射扫描电子显微镜（Fe-SEM），偏振光显微镜（POM）观察，表征了NADC / CNMIMBR（n = 2,8,12,12,14）的混合系统的混合系统的组织和性质。 ，傅里叶变换红外（FTIR），X射线粉衍射（XRD）和流变测量。清楚地描述了疏水链长度，手性刚性类固醇中心和静电相互作用的作用。结果表明，基于长链咪唑鎓表面活性剂（[CNMIM] Br，N> = 8）削弱了NADC的凝胶，而C（2）MIMBR强化了NADC的凝胶行为，甚至可以形成微晶。这些系统形成的超级水凝胶可以充当前景的吸附剂，用于从工业污水中除去重金属离子。

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  • 来源
    《RSC Advances》 |2016年第4期|共8页
  • 作者

    Song Zhaohua; Xin Xia; Shen Jinglin; Zhang Han; Wang Shubin; Yang Yanzhao;

  • 作者单位

    Shandong Univ Natl Engn Technol Res Ctr Colloidal Mat Jinan 250100 Peoples R China;

    Shandong Univ Natl Engn Technol Res Ctr Colloidal Mat Jinan 250100 Peoples R China;

    Shandong Univ Minist Educ Key Lab Colloid &

    Interface Chem Jinan 250100 Peoples R China;

    Shandong Univ Minist Educ Key Lab Colloid &

    Interface Chem Jinan 250100 Peoples R China;

    Shandong Univ Minist Educ Key Lab Colloid &

    Interface Chem Jinan 250100 Peoples R China;

    Shandong Univ Natl Engn Technol Res Ctr Colloidal Mat Jinan 250100 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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