Photochromic dithienylethenes as dopants in polymers

A series of photoresponsive Zeonex polyolefin films containing different dithienylethene derivatives (1, 11, 12, 23 and the diphenyl version of 1) with varying absorption properties in both the infrared and UV-visible regions of the spectrum have been synthesized and spin cast as thin films for multi-frequency 

In this section, we have examined several examples of dithienylethene derivatives that are suitable for dispersing in polymer matrices and processing into thin Aims. Although this approach to solid-state photoresponsive materials is convenient, it is limited by the amount of compound that can be incorporated into the matrix before segregaAon occurs. In Aie next secAon, we will explore how this limitaAon can be circumvented by integraAng Aie compounds directly into the polymer structure to produce high-content solid-state materials [65]. 

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