The viscosity coefficients of a room-temperature liquid crystal (MBBA)

1971 ◽  
Vol 36 (4) ◽  
pp. 311-312 ◽  
Author(s):  
Ch. Gähwiller
Keyword(s):  
Liquid Crystal ◽  
Room Temperature ◽  
Viscosity Coefficients ◽  
Temperature Liquid

Synthesis and characterization of new H-shaped triphenylene discotic room-temperature liquid crystal tetramers by a copper-free click reaction

2018 ◽  
Vol 42 (1) ◽  
pp. 272-280 ◽  
Author(s):  
Kan Zhang ◽  
Yuefeng Bai ◽  
Chun Feng ◽  
Guanghui Ning ◽  
Hailiang Ni ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Room Temperature ◽  
Click Reaction ◽  
Cycloaddition Reaction ◽  
Synthesis And Characterization ◽  
Discotic Liquid Crystal ◽  
Temperature Liquid

A series of new H-shaped triphenylene discotic liquid crystal tetramers has been designed and synthesized using a copper-free [3+2] cycloaddition reaction.

Synthesis and Mesomorphism of Rigid Bridge Triphenylene Discotic Liquid Crystal Dimers

2010 ◽  
Vol 428-429 ◽  
pp. 41-45
Author(s):  
Hui Zhou ◽  
Wen Hao Yu ◽  
Bi Qin Wang ◽  
Ping Hu ◽  
Ke Qing Zhao
Keyword(s):  
Liquid Crystal ◽  
Room Temperature ◽  
Alkyl Chain ◽  
Scanning Calorimetry ◽  
Polarized Optical Microscopy ◽  
Discotic Liquid Crystal ◽  
Rigid Spacer ◽  
Temperature Liquid ◽  
Columnar Mesophases ◽  
Homocoupling Reaction

Pd-Cu catalyzed homocoupling reaction has been used for the synthesis of symmetrical triphenylene discotic liquid crystal dimers, [C18H6(OCnH2n+1)5(O2CC6H4C≡C-)]2 (n = 4, 5, 6, 7, 8, 9), which connected two triphenylene discogens via a long rigid spacer. The purity and structure of monomers and dimers have been characterized with 1H NMR, IR and high resolution Mass. Their fine thermal stability has been confirmed by the results of thermogravimetry analysis (TGA). Polarized optical microscopy (POM) and differential scanning calorimetry (DSC) results have shown that the monomers and dimers exhibit columnar mesophases (Col). The dimers display wide mesophase ranges and are room temperature liquid crystals, and their clearing points increased with the lengthening of peripheral alkyl chain.

scholarly journals Room temperature liquid crystal of symmetric gallic trimer containing cyanuric core: synthesis and mesomorphism

2015 ◽  
Vol 42 (12) ◽  
pp. 1808-1814 ◽  
Author(s):  
Hongyu Guo ◽  
Xiaoting Fang ◽  
Fafu Yang ◽  
Yamin Wu
Keyword(s):  
Liquid Crystal ◽  
Room Temperature ◽  
Temperature Liquid
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