A thermotropic poly(ether ketone) based on the p-quaterphenyl unit: evidence for a smectic C phase
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DOI: 10.1039/c9py01441a
Abstract: High-temperature polycondensation of 4,4′-(hexafluoroisopropylidene)diphenol with the homologous series of bis(fluoroaryl)diketones FArCO[Ar]xCOArF (Ar = 1,4-phenylene, x = 1, 2, 3 or 4) affords polyetherketones [–OArC(CF3)2ArOArCOArxCOAr–]n. The polymers with x = 1–3 are conventional amorphous thermoplastics, but… read more here.
Keywords: based quaterphenyl; phase; ketone based; ether ketone ... See more keywords