Synthesis of polyphosphazenes as potential photorefractive materials

Abstract A new series of polyorganophosphazenes have been designed for potential photorefractive effect and synthesized via a nucleophilic substitution reaction of poly(dichlorophosphazene) with N -(6-Hydroxyhexanyl)carbazole ( HCZ ) as charge-transporting agent, N -(6-Hydroxyhexanyl)-3-(4-Nitrophenylazo)carbazole ( HNACZ ) as electro-optical chromophore. The component concentrations in the polymers can be controlled by different feed ratios between HCZ and HNACZ . The structural characterization for the high polymers was presented by 1 H-NMR, IR and UV–Visible spectra, gel permeation chromatograply (GPC) and differential scanning calorimetry (DSC).