Solid-state decomposition of alkoxyfuroic acids.

A series of alkoxyfuroic acids with alkyl lengths of n = 8-18 was synthesized, and the solid-state decomposition was studied. Bawn kinetics were adhered to, and the solid and liquid decomposition rate constants were established; they followed an Arrhenius relationship well, with energy of activations and preexponential factors being a function of the chain length. There was a break in this correlation between n = 14 and n = 16. The liquefaction points were of the expected correlation with inverse temperature. The isokinetic temperature (Ti) fell fairly well on the line demonstrated for other compound series.