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