Ferrocene-bound polyester resins

Abstract

Seven 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) ferrocene 1, 1,1′-ferrocene dicarboxylic acid 2, and 1,1′-ferrocene diacetic acid 3. The incorporation of an organometallic complex significantly increased the rate of the polyesterification process. In order of increasing rate enhancement, the effect was 2 2. Mechanisms to account for these results are presented. Some of the strength related properties were also studied.