HIGH TEMPERATURE LIQUID LUBRICANTS

THE OBJECT OF THIS PROJECT IS TO PREPARE NOT LESS THAN 100 CM3 OF MONOMOLECULAR PERFLUOROPOLYETHER (PFPE) MATERIALS AS POTENTIAL HIGH TEMPERATURE LUBRICANTS. THE PHYSICAL PROPERTIES OF THESE MODEL COMPOUNDS WILL BE DETERMINED AND STRUCTURE/PROPERTY CORRELATIONS USED TO GUIDE THE RESEARCH TOWARDS AN IDEAL MATERIAL. THE MAJOR EFFORT OF THIS PROJECT WILL BE DIRECTED TOWARDS PREPARING, ISOLATING AND CHARACTERING FUNCTIONALIZED SHORT CHAIN PERFLUOROETHERS AND DIFUNCTIONALIZED FLUORLINATED COMPOUNDS. SEVERAL STRUCTURALLY DIFFERENT TYPES OF PFPE WILL BE SYNTHESIZED BY LINKING SUCH PURE MATERIALS IN A CONTROLLED MANNER TO AFFORD MONOMOLECULAR PRODUCTS. COUPLING WILL INVOLVE FORMATION OF CARBON-OXYGEN AND/OR CARBON-CARBON; RESIDUAL HYDROGEN WILL BE FLUORINATED BY SF/HF AND F2 RESPECTIVELY. COMMERICAL APPLICATIONS MIGHT INCLUDE HIGH PERFORMANCE LUBRICANTS AND VAPOR DIFFUSION PUMP FLUIDES. THE MAIN BENEFIT OF THE PROJECT WILL BE IN THE UNDERSTANDING OF STRUCTURE/PROPERTY RELATIONSHIP OF THE VARIOUS PRODUCTS.