Molecular disorder in columnar-phase discotic liquid-crystal strands

A dispersion of colloidal gold nanoparticles in 2,3,6,7,10,11-hexabutyloxytriphenylene possessing a hexatic plastic columnar phase has been studied by DSC, PLM, UV-Vis spectroscopy, SAXS diffraction and dielectric spectroscopy.

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Mesophase Studies and Charge Transportation Properties of 3,6-dicarbethoxy-2,7,10,11-tetra-pentyloxytriphenylene

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.181-182.193 ◽

2011 ◽

Vol 181-182 ◽

pp. 193-196

Author(s):

Chun Xiu Zhang ◽

Jia Ling Pu ◽

Hao Wu ◽

Ao Zhang ◽

Ming Xia Zhang ◽

...

Keyword(s):

Differential Scanning Calorimetry ◽

Liquid Crystal ◽

Optical Microscopy ◽

Chemical Structure ◽

Room Temperature ◽

Time Of Flight ◽

Scanning Calorimetry ◽

Columnar Phase ◽

Discotic Liquid Crystal ◽

Time Of Flight Method

In this study, a triphenylene-based discotic liquid crystal 3,6-dicarbethoxy-2,7,10,11-tetra-pentyloxytriphenylene was synthesized. The chemical structure was characterized by FTIR, 1HNMR.The mesophases of the material synthesized here was characterized by using polarizing optical microscopy (POM), differential scanning calorimetry (DSC). It was found that the compound displayed columnar phase during cooling at 164.7 °C and the columnar phase can be preserved even at room temperature. The charge transportation properties of the compound were measured by using time-of-flight method.

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Deuteron NMR study of dynamics and order in the columnar phase of a fluorinated discotic liquid crystal

Molecular Physics ◽

10.1080/00268979909482917 ◽

1999 ◽

Vol 97 (11) ◽

pp. 1165-1171 ◽

Cited By ~ 13

Author(s):

RONALD Y. DONG ◽

N. BODEN ◽

R. J. BUSHBY ◽

P. S. MARTIN

Keyword(s):

Liquid Crystal ◽

Columnar Phase ◽

Discotic Liquid Crystal ◽

Nmr Study ◽

Deuteron Nmr

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Synthesis and Mesophase of a Triphenylene-Based Discotic Liquid Crystal with Plastic Columnar Phase

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.748.63 ◽

2015 ◽

Vol 748 ◽

pp. 63-66

Author(s):

Jian Chuang Wang ◽

Shuai Feng Zhang ◽

Chun Xiu Zhang ◽

Hao Wu ◽

Yi Fei Wang ◽

...

Keyword(s):

Liquid Crystal ◽

Ir Spectrum ◽

Chemical Structure ◽

Columnar Phase ◽

Discotic Liquid Crystal ◽

Ft Ir ◽

Plastic Phase

A novel triphenylene-based discotic liquid crystal 2, 3, 6, 7, 10, 11-hexabutylcarboxyltriphenylene was synthesized. The chemical structure was determined by 1HNMR and FT-IR spectrum, and its mesophase was investigated by DSC and POM methods. The compound showed classical texture of columnar plastic phase under POM at the mesophase temperature from175°C-185°C during cooling.

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