Synthesis and Structure-Property Correlation of Perfluoropolyalkylether BaseFluids

摘要

Monomers for the preparation of the partially fluorinated model fluids weresynthesized and limited investigations were carried out on their reactions. Direct fluorination processes were explored. A series of commercial and experimental perfluoropolyalkylether fluids was fully characterized and their thermal oxidative behavior in the presence of M-5O bearing steel alloy was determined. Computational treatments based on molecular mechanics, the input from the experimental data, and regression analysis led to the development of Quantitative Structure/Activity (Property) Relationships (QSAR). The developed expressions permit predictions, without synthesis of the candidate materials, of thermal oxidative stability, viscosity, viscosity/temperature and viscosity/ molecular weight profiles.