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化学学报
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化学学报 ›› 2006, Vol. 64 ›› Issue (13): 1319-1323. 上一篇    下一篇

研究论文

层状溶致液晶中磁性纳米粒子掺杂的研究

靖波1，陈晓*,1，隋震鸣1，王庐岩1，柴永存1，邱化玉*,2   

  1. (1山东大学胶体与界面化学教育部重点实验室 济南 250100)
    (2杭州师范学院有机硅化学及材料技术教育部重点实验室 杭州 310012)
  • 投稿日期:2005-09-27 修回日期:2006-03-15 发布日期:2006-07-14
  • 通讯作者: 陈晓

Study on Lamellar Lyotropic Liquid Crystal Doped with Magnetic Nanoparticles

JING Bo1, CHEN Xiao*,1, SUI Zhen-Ming1, WANG Lu-Yan1, CHAI Yong-Cun1, QIU Hua-Yu*,2   

  1. (1 Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, Shandong University, Jinan 250100)
    (2 Key Laboratory of Organosilicon and Material Technology of Ministry of Education, Hangzhou Teachers College,
    Hangzhou 310012)
  • Received:2005-09-27 Revised:2006-03-15 Published:2006-07-14
  • Contact: CHEN Xiao

PDF

845

被引次数

5

选择非离子表面活性剂十二烷基(4)聚氧乙烯醚(C12E4)与H2O构成的溶致液晶(LLC)层状模板, 掺杂油酸铵包覆的Fe3O4亲水性磁性纳米粒子, 构建稳定的有机/无机杂合体. 用透射电镜(TEM), X射线粉末衍射(XRD), 偏光显微镜(POM), 小角X射线散射(SAXS)和振动探针式磁强计(VSM)等对粒子及掺杂前后的层状液晶相结构变化进行表征. 结果表明, 粒子掺入使LLC模板的层间距产生了改变, 同时增强了体系有序性．通过对杂合体表征结果的分析, 阐述了模板与粒子间相互作用的机理.

关键词: 十二烷基(4)聚氧乙烯醚, 溶致层状液晶, 掺杂, 磁性纳米粒子, 小角X射线散射

The stable organic/inorganic hybrids have been fabricated within lamellar phase of C12H25- (OCH2CH2)4OH/H2O lyotropic liquid crystals (LLC) by doping hydrophilic ammonium oleate-coated Fe3O4 magnetic nanoparticles. Characterizations of the nanoparticles and the LLC phase structure before and after doping were performed respectively by transmission electron microscope, powder X-ray diffraction, polarized optical microscopy, small angle X-ray scattering and vibrating sample magnetometer techniques. Results show that the periodic spacing was influenced and the hybrid order was enhanced after doping nanoparticles. The interactions between the template and nanoparticles have been discussed through analyzing the hybrid characterization results.

Key words: lauryl poly(oxyethylene) ether, lyotropic lamellar phase, doping, magnetic nanoparticle, small angle X-ray scattering