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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.

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Design and Synthesis of HAT-core as New Materials (II)

Hsu, Cheng-Hou 15 August 2012 (has links)
We take the electron deficient heterocyclic hexaazatriphenylene (HAT) as our central core and readily synthesized by the condensation of hexaketo- cyclohexane with the respective 1,2-bis-alk-oxy-4,5-diaminobenzene. We use the polarised optical microscopy (POM) and differential scanning calorimetry (DSC) to study the mesophase range.These mesophases are identified as columnar phases by diffraction (XRD).
hexaazatriphenylene
unsymmetry DLCs
amphiphilic DLCs
discotic liquid crystals
columnar liquid crystal phase

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