Abstract
AbstractDue to the unique optical and chromatic properties toward various external stimuli, conjugated polydiacetylene (PDA) materials are attracting a great attention from scientists. And the fabrication of PDA embedded composites would further expand the application prospect. In this work, aniline substituted diacetylene derivative was embedded into wax matrix to form a writable composite. After UV induced 1,4‐topochemical polymerization, the patterns generated from the PDA/wax composite showed clearly a blue‐to‐purple‐to‐red colorimetric change upon thermal stimulus. More interestingly, with the introduction of two representative near‐infrared (NIR) dyes to the composite, the PDA also showed blue‐to‐red chromatic transition in response to distinctive NIR lights irradiation.
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