Fluorinated polymeric materials for the protection of monumental buildings

A study was performed based on the preparation of fluorinated polymers, whe re several F-atom in different positions were replaced with F-atom by selec ting different fluoro containing acrylic monomers and by copolymerization w ith nonfluorinated acrylates or vinylethers. The structure design was aimed to optimize (e.g. minimize) the fluorine content of the final material whi le obtaining improved chemical and photochemical stability, good filmabilit y and impermeability against condensed water as possible carrier of aggress ive chemicals. The suitability of these new materials for protective coating of stones is tested by evaluating their stability to UV-Vis irradiation and their select ive permeability to water vapour vs, condensed water.