SYNTHESIS, CHARACTERIZATION, AND ESTERESTER INTERCHANGE STUDY OF THE MIXED ESTER 2-ETHYLHEXYL BENZYL AZELATE.
Abstract
New components are in demand for low-temperature instrument oils. To meet this demand two new esters, bis(3,4-dichlorobenzyl) Beta-methyladipate and 2ethylhexyl benzyl azelate, were synthesized and although both esters possessed the required high surface tensions (43.6 and 33.4 dynes/cm at 20C, respectively), only the azelate had a suitable viscosity for low-temperature application. This mixed ester, 2-ethylhexyl benzyl azelate, were prepared by the esterification of the half ester, 2ethylhexyl hydrogen azelate, with a large excess of benzyl alcohol. A study was made of the disproportionation of 2-ethylhexyl benzyl azelate into two symmetrical diesters: 2(2-ethylhexyl benzyl azelate) reversibly yields dibenzyl azelate + bis(2-ethylhexyl) azelate. The reaction rates for this ester-ester interchange were found to be too small to restrict the desired application of the mixed ester at temperatures below 100C. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 08, 1965
- Accession Number
- AD0612092
Entities
People
- J. G. O'rear
- P. J. Sniegoski
Organizations
- United States Naval Research Laboratory