Abstract

A novel diacetylene monomer was synthesized via the esterification of 10,12-pentacosadiynoic acid with 4-aminophenol. The polymer of 10,12-pentacosadiynoic acid-4-aminophenyl ester was formed by self-assembly of the monomer, followed by UV irradiation at room temperature. It was characterized by the methods of NMR, laser diffraction, SEM and UV measurement. The polymer demonstrated a reversible purple-to-red colorimetric transition when the temperature changes from 25 to 70°C.

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