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Steric Interaction for Tuning Mesomorphic Properties of Dimeric Dibenzo[a,c]phenazine Discogens

The dibenzo[a,c]phenazine dimers with the branched alkoxy chain of disc were synthesized simplely. We now show on the synthesis of this series of compounds which were found to exhibit mesomorphism as determined by polarized optical microscopy (POM), differential scanning calorimetry (DSC) and X-ray diffraction (XRD). These materials showed polymeso- morphism and glass formation. In our investigations, we also observed that the effects of branched chains on dibenzo[a,c]phenazine enhanced columnar liquid crystal phase stability indeed.

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0815112-162502
Date15 August 2012
CreatorsChan, Ya-chi
ContributorsWen-Jun Zheng, Tsu-Hsin Chang, Chi-Wi Ong
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageCholon
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0815112-162502
Rightsuser_define, Copyright information available at source archive

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