Communication: LB films stable against desorption up to 250°C have been produced from prepolymerized polyurethanes, polyimides and polyamic acid and studied using optical reflection, microscopy, ellipsometry, ESCA, FT-IR and small angle X-ray scattering (SAXS). Due to their stability, the materials could be used to prepare multilayer films or as matrices for dyes opening up applications in optics.
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