AbstractSeven ferrocene‐bound polyester resins were prepared from fumaric acid and diethylene glycol in the presence of different ferrocene derivatives. To accomplish the incorporation of the organometallic moiety into the polyester resin chain, the cyclopentadienyl rings of ferrocene were substituted in the 1,1′ positions with reactive functional groups. The ferrocene derivatives used were: 1,1′‐bis(1‐hydroxyethyl) ferrocene1, 1,1′‐ferrocene dicarboxylic acid2, and 1,1′‐ferrocene diacetic acid3. The incorporation of an organometallic complex significantly increased the rate of the polyesterification process. In order of increasing rate enhancement, the effect was22. Mechanisms to account for these results are presented. Some of the strength related propert
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