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Title:   Author  item
                                            Doll, Kenneth

                                                         - *Ken*item
                                            Moser, Bryanitem
                                            Erhan, Sevim
  Submitted to: Meeting Abstract
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 6/1/2008
                                    Publication  Date: 10/13/2008
                                    Citation: Doll, K.M., Moser, B.R., Erhan, S.Z. 2008. Surface Tension Measurements on Oleochemicals Derived from Soybean Oil [abstract}. Industrial Application of Renewable Resources 2008 Program Book. p. 16.Interpretive Summary:
                                Technical Abstract: We report the surface tension measurements, at a variety of temperatures, for a variety of alkyl esters; in olefinic, epoxy, and branched ester forms.  Because these compounds are potential fuel or lubricant additives, this physical data is valuable, and currently unreported in the literature.  For example, the evaluation of the atomization efficiency of a compound is inversely proportional to its surface tension.  Overall, the surface tensions measured for each of the compounds ranged from 25.9 mN m-1 to 30.2 mN m-1, significantly below the values commonly observed for triacylglyceride oils, ~35 mN m-1.  Several interesting trends were uncovered including:  Increasing the quantity of epoxidation increases the surface tension of an oleochemical.  Linear increase in the size of the headgroup on an alkyl ester has a minimal effect.  Introduction of branching decreases surface tension.  Finally, the observed surface tensions of the mixtures, ordinary biodiesel or epoxy biodiesel, are intermediate between the two largest components of those mixtures.


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