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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Discotic Liquid Crystal-Synthesis of Unsymmertrical HAT

Huang, Chen-wei 01 August 2004 (has links)
Unsymmetrical discotic liquid crystals based on hexaazatriphenylene(HAT) have not been published until today.We have used tetrahydoxyquinone as the starting material to synthesis unsymmetrical discotic liquid crystals based on HAT and investigate their properties of liquid crystal.
2

Synthesis of Hexaazatrinaphtjylene with Polyether Side Chain

Mao, Yuan-Chi 30 July 2001 (has links)
We solved the problem of purification and successfully synthesized water-solubled hexaazatrinaphthylene with polyether and crown ether side chain under our biomimic and new material goal.
3

Design and Synthesis of the Discotic Liquid Crystalline Materials for Controlling Mesomorphic Behaviors and Supramolecular Assembly

Yeh, Ming-che 16 November 2012 (has links)
Discotic liquid crystals (DLC) have been reported with a large number of discoid cores to improve the degree of intermolecular ordering because the liquid crystals own to self-assembly into columnar stacking and self¡Vhealing ability. In my research, a series of disc-like £k-conjugated molecules based on aromatic rigid cores have been newly synthesized. I focus on the hexaazatrinaphthylene (HATN) and dibenzo-[a,c]- phenazine as aromatic cores, changing different side chains to control the mesomorphic behavior and their supermolecular assembly.

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