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Thermotropic liquid crystalline polyester nanocomposites via in situ intercalation polycondensation
Author(s) -
Ahn YongHo,
Chang JinHae
Publication year - 2008
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1151
Subject(s) - organoclay , thermotropic crystal , materials science , nanocomposite , condensation polymer , intercalation (chemistry) , polyester , montmorillonite , chemical engineering , sebacic acid , polymer chemistry , polymer , composite material , organic chemistry , liquid crystalline , chemistry , engineering
A thermotropic liquid crystalline polyester (TLCP)/organoclay nanocomposite was synthesized via in situ intercalation polycondensation of diethyl‐2,5‐dihexyloxyterephthalic acid and 4,4′‐biphenol in the presence of organically modified montmorillonite (MMT). The organoclay, C18‐MMT, was prepared by the ion exchange of Na + ‐MMT with octadecylamine chloride (C18‐Cl − ). TLCP/C18‐MMT nanocomposites were prepared to examine the variations of the thermal properties, morphology, and liquid crystalline phases of the nanocomposites with clay content in the range of 0–7 wt%. It was found that the addition of only a small amount of organoclay was sufficient to improve the thermal behavior of the TLCP hybrids, with maximum enhancement being observed at 1 wt% C18‐MMT. Copyright © 2008 John Wiley & Sons, Ltd.