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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 7, Number 5
BKCSDE 7(5)
May 20, 1986

Title	Thermotropic Compounds with Two Terminal Mesogenic Units and a Central Spacer, 8. Mutual Miscibility between the Dimesogenic, Nematic Compounds
Author	Jung-Il Jin*, E-Joon Choi, Joo-Hoon Park
Keywords
Abstract	Mutual miscibility between thermotropic, nematic compounds with two terminal mesogenic units and a central spacer was studied by differential scanning calorimetry (DSC) and on a polarizing microscope. It was found that the isomorphous, nematic dimesogenic compounds with wide variety of structures are miscible in mesophases with each other over the whole range of composition and that Schroder-van Laar equation almost correctly predicts the melting temperature and composition of eutectic mixtures. There was a pair of compounds which were exceptional and did not form a eutectic mixture and, instead, revealed a monotonous change in melting (Tm) and isotropic transition temperatures (Ti) as the composition of the mixture was varied. The compounds were of almost same structure in shape and seemed to undergo formation of solid solution.
Page	353 - 357
Full Text	PDF

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