Abstract
Polymers with polyimide, polyamide or poly(amid-imide) structure have been obtained by polycondensation of 2,2-bis(3-amino-4-oxyhexyloxy-phenyl-4’-butoxyazobenzen) hexafluoropropane with hexafluoroisopropylidene diphthalic dianhydride or two different aromatic diacid dichlorides. These polymers have been characterized by FTIR and UV-VIS spectra, molecular mass determination, solubility and optical properties. The photochromic behaviour upon UV-Vis nopolarized and polarized light was also investigated. Keywords: pendent azobenzene groups, polyimide, polyamide, polyamid-imide, photoinduced optical properties