Abstract
AbstractThe Williamson ether synthesis has been applied to the formation of an arylene/alkylene polyether with pendant carboxyl groups from 4,4‐bis(p‐hydroxyphenyl)pentanoic acid and 1,4‐dichlorobutane. The polymer was found to have a viscosity—molecular weight relationship following the equation, [η] = 1.30 × 10−4M0.94, in dimethylformamide at 25°C. Hydrogenolysis of the derived polyether acid chloride was found to proceed smoothly at atmospheric pressure in the presence of Pd–BaSO4 catalyst without poisoning of the catalyst by multiple absorption of polymer. The resulting polyether aldehyde undergoes typical aldehyde reactions. The infrared spectra of the polymers are also examined.
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