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Synthesis, thermal, and mechanical characterization of liquid-crystalline polyhydroxyethers

✍ Scribed by Albert Bruggeman; Sebastiaan B. Damman; Alois H. A. Tinnemans

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
201 KB
Volume
66
Category
Article
ISSN
0021-8995

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✦ Synopsis

High molecular weight liquid-crystalline polyhydroxyethers, containing functional hydroxy groups, were synthesized from an aromatic diol and the diglycidylether of an aromatic diol. The polymers showed a liquid-crystalline melt when about 70% or more of the aromatic units in the chain were biphenyl units. Tensile modulus values varied from 3 GPa for as-cast films to 6 GPa for drawn films. These polymers are potentially suitable candidates to reinforce common thermoplastics by reactive blending. For this purpose polyhydroxyethers have been prepared, having a liquidcrystalline melt in the processing range of PET, viz. 260-290ЊC.

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