Preprints of symposium on liquid crystals
Online ISSN : 2432-9959
Print ISSN : 1880-3539
ISSN-L : 1880-3539
23rd Symposium on Liquid Crystals
Session ID : 2AC05
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Mesomorphic phase transition and molecular motion of polyesters having 1,2bis (phenoxy) ethane-4.4'-dicarboxylate
M. HattoriS. Totsuka*S. YanoT. Inoue
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Abstract
In this work, we have investigated phase transitions and molecular motions of poly [ethylene 1,2-bis (phenoxy) ethane-4,4'-dicarboxylate] (PEG/EG) and poly [ethylene 1,2-bis (2-chlorophenoxy) ethane-4,4'-dicarboxylate] (Cl-PEC/EG). In both PEG/EG and Cl-PEC/EG, any mesophase was not observed. Refering to our previous results on other polyesters having PEC, it was deduced that an introduction of rigid phenyl groups to PEC instead of flexible EG needs an appearance of mesophase in PEC-polyesters. It is found that the substitution of Cl to the phenyl group in PEC make the backbone chains of PEC-polyester more rigid.
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© 1997 The Japanese Liquid Crystal Society
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