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. Author manuscript; available in PMC: 2009 Aug 31.
Published in final edited form as: Langmuir. 2008 Jul 29;24(17):9286–9294. doi: 10.1021/la801130w

Table 1.

Sample Compositions in the Present Studya

W0 H2O (g) αW αS αO ΦW ΦS ΦO
0 0 0 0.502 0.495 0 0.240 0.760
10 0.765 0.099 0.452 0.448 0.104 0.215 0.680
30 2.295 0.249 0.377 0.374 0.259 0.178 0.563
50 3.825 0.356 0.323 0.321 0.368 0.152 0.480
70 5.355 0.436 0.283 0.281 0.456 0.131 0.413
90 6.885 0.498 0.252 0.250 0.515 0.118 0.373
110 8.415 0.548 0.227 0.225 0.584 0.106 0.334
130 90945 0.589 0.206 0.204 0.602 0.096 0.302
150 11.475 0.623 0.189 0.187 0.636 0.087 0.276
170 13.005 0.652 0.175 0.173 0.665 0.081 0.255
a

W0 is defined as the concentration ratio of water to AOT in the system (W0 = [H2O]/[AOT], where 0.85 M AOT (1.89 g) and 0.42 M lecithin (1.59 g) are dissolved in 5 mL of isooctane. αw, αs, and αo denote the weight fractions of the aqueous phase, the surfactant (AOT and lecithin together), and the oil phase, respectively. φw, φs, and φo denote the corresponding volume fractions. In translating experimental weight fractions to volume fractions, an effective surfactant density of 2.2 g/mL was assumed.