Photochromic properties of composite films of thermally irreversible diarylethenes and fulgimides in polytetrafluoroethylene matrix

摘要

Photochromic polymeric thin films have been prepared by vacuum codepositionudof polytetrafluoroethylene (PTFE) and thermally irreversible photochromicudcompounds: the cyclopentene derivative of diarylethene and fulgimide. Theirudphotochromic properties were studied using the spectral-kinetic method as comparedudwith polymethyl methacrylate (PMMA) films filled with the same photochromicudcompounds prepared using the spin coating method. The films prepared using codepositionudin vacuum are characterized by photochromic properties acceptable forudrecording media for 3D optical memory