Table 3 qualitatively summarizes the structural effects of n-alcohol and fragrances on the PIT variation of the Brij30/octane/water system. The knowledge of these BC 11-38 patterns on emulsion behavior constitutes important information to design micro- and macroemulsions with desired properties for cosmetic, pharmaceutical and food industries.
Influence of structural and function changes on the PIT variation.EntriesStructural/function modificationdPITd(%A)Octane C8OHAlkane to alcoholOctane 14,15Alkane to phenolOctane 5,8,9,12,13Alkane to aldehyde/ester/nitrile/ether/ketone87,6Increasing ester carbon chain lengthC1OH C7OHIncreasing alcohol carbon chain lengthC10OH 1Linear to branched alcohol34Primary to tertiary alcohol111Primary to secondary cyclic alcohol1,23Saturated to allylic alcohol1110Increasing steric hindrance of OH groupFull-size tableTable optionsView in workspaceDownload as CSV
The additive effect can have two interpretations on the HLD equation, a separated independent effect on f(A) or the modification of the EACN oil phase. Both of them can diminish the PIT and complete elucidation is uracil necessary to understand the phenomenological reasons of summarized changes on the PIT of Brij30/n-octane/water system. Effect of fragrances using a well-defined surfactant system and quantification of fragrances in different phases will be discussed in a forthcoming paper.