Vinyl ether polymer fluids made using controlled living cationic polymerization and their use as synthetic lubricant basestocks
The synthesis of high performance polyvinyl ether (PVE) fluids using a Lewis acid based cationic polymerization process is disclosed. The polyvinyl ether fluid have repeating vinyl ether units of the general formula —[CH2—CH(O—R)]n, wherein R is comprised of a branched or linear alkyl group having at least 4 carbon atoms and n is a whole number representing the average number of repeating units in the polyvinyl ether. The resulting PVE fluids exhibit excellent lubricant properties, similar to poly-alpha olefins (PAOs), but the PVE fluids have the benefit of higher polarity than PAOs and thus have better solubility and dispersity of polar additives.
Exxonmobil Research and Engineering Company
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Abhimanyu O. Satish Ranjan
Patil Bodige Tripathy