Self-assembly of double-tail anionic surfactant having cyanobiphenyl terminal groups in water

This study reports the interfacial properties and lyotropic liquid crystal formation of sodium 1,2-bis{6-[4-(4-cyanophenyl)phenyloxy]hexyloxycarbonyl}ethanesulfonate (SBCPHS), which is a double-tail surfactant with cyanobiphenyl terminal groups, in water. Polarized microscopic observation of water/S...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 25(2009), 17 vom: 01. Sept., Seite 10230-6
1. Verfasser: Sagisaka, Masanobu (VerfasserIn)
Weitere Verfasser: Hino, Masaya, Nakanishi, Yusuke, Inui, Yosuke, Kawaguchi, Tetsuya, Tsuchiya, Koji, Sakai, Hideki, Abe, Masahiko, Yoshizawa, Atsushi
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2009
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Biphenyl Compounds Hydrocarbons Surface-Active Agents Water 059QF0KO0R
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520 |a This study reports the interfacial properties and lyotropic liquid crystal formation of sodium 1,2-bis{6-[4-(4-cyanophenyl)phenyloxy]hexyloxycarbonyl}ethanesulfonate (SBCPHS), which is a double-tail surfactant with cyanobiphenyl terminal groups, in water. Polarized microscopic observation of water/SBCPHS mixtures revealed the presence of columnar and lamellar phases. In the lamellar phase, myelin figures representing multilamellar tubes were observed, and some of these figures had a double-helix structure. In order to examine these liquid crystal structures in detail, the bilayer thickness of the lamellar tubes and the lattice parameters of the columnar phase were measured by small-angle X-ray scattering analysis. Four scattering peaks that could be ascribed to C2/m symmetry were observed for the columnar phase. The bilayer thickness and one of the lattice parameters were smaller than twice the molecular length of SBCPHS; this showed that the liquid crystal phases had intercalated structures. Comparison of SBCPHS with a typical double-tail hydrocarbon surfactant revealed that the cyanobiphenyl terminal groups in the former helped increase the stability of the liquid crystal formed at low temperatures. The stabilizing effect of the cyanobiphenyl terminal groups on the liquid crystals could have been driven by electrostatic intermolecular interactions between the terminal groups in antiparallel arrangement of the SBCPHS molecules 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
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650 7 |a Surface-Active Agents  |2 NLM 
650 7 |a Water  |2 NLM 
650 7 |a 059QF0KO0R  |2 NLM 
700 1 |a Hino, Masaya  |e verfasserin  |4 aut 
700 1 |a Nakanishi, Yusuke  |e verfasserin  |4 aut 
700 1 |a Inui, Yosuke  |e verfasserin  |4 aut 
700 1 |a Kawaguchi, Tetsuya  |e verfasserin  |4 aut 
700 1 |a Tsuchiya, Koji  |e verfasserin  |4 aut 
700 1 |a Sakai, Hideki  |e verfasserin  |4 aut 
700 1 |a Abe, Masahiko  |e verfasserin  |4 aut 
700 1 |a Yoshizawa, Atsushi  |e verfasserin  |4 aut 
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773 1 8 |g volume:25  |g year:2009  |g number:17  |g day:01  |g month:09  |g pages:10230-6 
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