Incorporation of carbon nanotubes into a lyotropic liquid crystal by phase separation in the presence of a hydrophilic polymer

Single-walled carbon nanotubes (SWNTs) were incorporated into a lyotropic liquid crystal (LLC) matrix formed by n-dodecyl octaoxyethene monoether (C(12)E(6)) at room temperature through spontaneous phase separation induced by nonionic hydrophilic polymer poly(ethylene glycol) (PEG). The quality of S...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 26(2010), 5 vom: 02. März, Seite 3562-8
1. Verfasser: Xin, Xia (VerfasserIn)
Weitere Verfasser: Li, Hongguang, Wieczorek, Stefan A, Szymborski, Tomasz, Kalwarczyk, Ewelina, Ziebacz, Natalia, Gorecka, Ewa, Pociecha, Damian, Hołyst, Robert
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2010
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Nanotubes, Carbon Surface-Active Agents Polyethylene Glycols 3WJQ0SDW1A
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520 |a Single-walled carbon nanotubes (SWNTs) were incorporated into a lyotropic liquid crystal (LLC) matrix formed by n-dodecyl octaoxyethene monoether (C(12)E(6)) at room temperature through spontaneous phase separation induced by nonionic hydrophilic polymer poly(ethylene glycol) (PEG). The quality of SWNTs/LLC composite was evaluated by polarized microscopy observations and small-angle X-ray scattering (SAXS) measurements. The results obtained clearly indicated that SWNTs have been successfully incorporated into the LLC matrix up to a considerable high content without destroying the LLC matrix, although interesting changes of the LLC matrix were also induced by SWNTs incorporation. By varying the ratio of PEG to C(12)E(6), the type of LLC matrix can be controlled from hexagonal phase to lamellar phase. Temperature was found to have a significant influence on the quality of SWNTs/LLC composite, and tube aggregation can be induced at higher temperature. When SWNTs were changed to multiwalled carbon nanotubes (MWNTs), they became difficult to be incorporated into LLC matrix because of an increase in the average tube diameter 
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700 1 |a Li, Hongguang  |e verfasserin  |4 aut 
700 1 |a Wieczorek, Stefan A  |e verfasserin  |4 aut 
700 1 |a Szymborski, Tomasz  |e verfasserin  |4 aut 
700 1 |a Kalwarczyk, Ewelina  |e verfasserin  |4 aut 
700 1 |a Ziebacz, Natalia  |e verfasserin  |4 aut 
700 1 |a Gorecka, Ewa  |e verfasserin  |4 aut 
700 1 |a Pociecha, Damian  |e verfasserin  |4 aut 
700 1 |a Hołyst, Robert  |e verfasserin  |4 aut 
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