A series of potentially electroactive aromatic-aliphatic polyamides based upon 3,6-bis(2-cyano-4-aminophenoxy)phthalonitrile (1) was synthesized in N,N-dimethylacetamide to yield polymers with intrinsic viscosities of 0.66-1.04 dL/g. One polyamide was synthesized using 1,4-bis(2-cyano-4-aminophenoxy)benzene (2) to compare to 1. There appears to be an odd-even effect of methylene spacer length upon the mechanical properties and glass transition temperature, with an even number of methylene groups yielding the larger values. Thermogravimetric analysis in air and nitrogen showed that these polymers had similar 5% weight losses in both atmospheres, which indicated that oxygen is not involved in the initial degradation of these polymers.