Synthesis of polyphosphazenes as potential photorefractive materials

A new series of polyorganophosphazenes have been designed for potential pho torefractive effect and synthesized via a nucleophilic substitution reactio n of poly(dichlorophosphazene) with N-(6-Hydroxyhexanyl)carbazole (HCZ) as charge-transporting agent, N-(6-Hydroxyhexanyl)-3-(4-Nitrophenylazo)carbole (HNACZ) as electro-optical chromophore. The component concentrations in th e polymers can be controlled by different feed ratios between HCZ and HNACZ . The structural characterization for the high polymers was presented by H- 1-NMR, IR and UV-Visible spectra, gel permeation chromatography (GPC) and d ifferential scanning calorimetry (DSC). (C) 2001 Elsevier Science BN. All r ights reserved.