RRI Digital Repository >
06. Soft Condensed Matter >
Research Papers (SCM) >

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/4005

Title: The first examples of discotic liquid crystalline gemini surfactants
Authors: Kumar, Sandeep
Gupta, Satyam Kumar
Keywords: Gemini surfactant
Ionic liquid crystal
Columnar mesophase
Issue Date: 13-Oct-2010
Publisher: Elsevier Ltd.
Citation: Tetrahedron Letters, 2010, Vol.51, p5459
Abstract: Six novel gemini imidazolium salts tethered with hexaalkoxytriphenylene moieties were prepared by quaternization of imidazole nitrogen with ω-bromo-substituted triphenylene derivatives. Their chemical structures were examined by 1H NMR, IR, UV, MS, and elemental analyses. The mesomorphic properties of these discotic dimeric salts were investigated by polarizing optical microscopy, differential scanning calorimetry, and X-ray diffraction studies. These triphenylene-imidazole-based gemini dimers with bromide as counter ion were found to exhibit liquid crystalline behavior over a wide temperature range and display ionic conductivity in the range of 10−6 to 10−5 S/m. These materials tend to form monolayer at the air–water interface.
Description: Restricted Access.
URI: http://hdl.handle.net/2289/4005
ISSN: 0040-4039
Alternative Location: http://dx.doi.org/10.1016/j.tetlet.2010.08.022
Copyright: 2010 Elsevier Limited.
Appears in Collections:Research Papers (SCM)

Files in This Item:

File Description SizeFormat
2010_Tetrahedron Letters_V51_p5459.pdfRestricted Access669.4 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


    RRI Library DSpace