Polyfluoroalkoxyphosphazenes – a Promising Class of Organoelemental Polymers

The results of the synthesis of polyfluoroalkoxyphosphazenes and also polyorganophosphazenes containing various non-fluorinated organic groups as substituents at the phosphorus atoms together with fluoroalkoxy-groups are surveyed. The characteristics of the formation of these polymers by the chemical modification of polydichlorophosphazene are examined. A systematic account is given of the literature data on the properties of polyfluoroalkoxyphosphazenes and their practical applications. The ways in which varieties of the macromolecules of these polymers arise and the influence of the nature and number of anomalous units on their properties are considered. Attention is drawn to a fundamentally important characteristic feature of polyfluoroalkoxyphosphazenes, namely the high sensitivity of their properties to anomalous units when the content of the latter is less than 1 mole %.
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