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Studies from Qufu Normal University Provide New Data on Materials Science and Physical Chemistry (Gels and Lyotropic Liquid Crystals: Using an...

September 12, 2014



Studies from Qufu Normal University Provide New Data on Materials Science and Physical Chemistry (Gels and Lyotropic Liquid Crystals: Using an Imidazolium-Based Catanionic Surfactant in Binary Solvents)

By a News Reporter-Staff News Editor at Science Letter -- Current study results on Science have been published. According to news reporting originating from Qufu, People's Republic of China, by NewsRx correspondents, research stated, "The self-assembly behavior of an imidazolium-based catanionic surfactant, 1-butyl-3-methylimidazolium dodecylsulfate ([C(4)mim]-[C12H25SO4]), was investigated in water-ethylammonium nitrate (EAN) mixed solvents with different volume ratios. It is particular interesting that this simple surfactant could not only form lyotropic liquid crystals (LLC) with multimesophases, i.e., normal hexagonal (H-1), lamellar liquid crystal (L-a), and reverse bicontinuous cubic phase (V-2), in the water-rich environment but also act as an efficient low-molecular-weight gelator (LMWG) which gelated EAN-abundant binary media in a broad ! concentration range."

Our news editors obtained a quote from the research from Qufu Normal University, "The peculiar nanodisk cluster morphology of gels composed of similar bilayer units was first observed. FT-IR spectra and density functional theory (DFT) calculations reveal that strong H bonding and electrostatic interactions between EAN and the headgroups of [C(4)mim][C12H25SO4] are primarily responsible for gelation. The self-assembled gels displayed excellent mechanical strength and a thermoreversible sol-gel transition. It is for the first time that a rich variety of controllable ordered aggregates could be observed only by simply modulating the concentration of a single imidazolium-based catanionic surfactant or the ratio of mixed solvents."

According to the news editors, the research concluded: "This environmentally friendly system is expected to have broad applications in various fields, such as materials science, drug delivery systems, and supramolecular chemistry."

For more information on this research see: Gels and Lyotropic Liquid Crystals: Using an Imidazolium-Based Catanionic Surfactant in Binary Solvents. Langmuir, 2014;30(30):9076-9084. Langmuir can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Langmuir - www.pubs.acs.org/journal/langd5)

The news editors report that additional information may be obtained by contacting N. Cheng, Qufu Normal Univ, Sch Chem & Chem Engn, Qufu 273165, People's Republic of China. Additional authors for this research include Q.Z. Hu, Y.H. Bi, W.W. Xu, Y.J. Gong and L. Yu (see also Science).

Keywords for this news article include: Qufu, People's Republic of China, Asia, Science

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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