Table 2.

Surface tension and fluorescence aggregation parameters of the pure surfactants and the catanionic mixtures and ζ-potential of the mixtures.

HM	Am 1	CMC γ 2	γ CMC 3	α 4	β 5	CMCF 2	α 4	β 5	ζ-potential 6
100	0.57	5.2	33			3.8
80:20 HM	0.28	0.17	23.5	0.49	−11.3	0.60	0.49	−5.5	+45
60:40 HM	0.26	0.10	23	0.458	−12.5	0.47	0.43	−5.4	+43
50:50 HM	0.17	0.096	23	0.44	−12.3	0.29	0.41	−7.3	+36
40:60 HM	0.22	0.090	22	0.43	−12.6	0.31	0.39	−6.7	+33
20:80 HM	0.20	0.12	22	0.39	−11.9	0.40	0.32	−5.6	−24
Myr	1.0	5.0 7	24			0.90

¹ Area per molecule (A_m) according to Gibbs adsorption isotherm using n = 1 in nm², estimated error is 15%. ² CMC obtained by surface tension (CMC_γ) or Fluorescence (CMC_F) in mM, estimated error is 10%. ³ Surface tension (γ) at CMC in mNm⁻¹, estimated error is 1 mNm⁻¹. ⁴ α DMHNHC₁₄ molar fraction in the micelles. ⁵ Interaction parameter (β). ⁶ ζ-potential in mV, estimated error is 2 mV. ⁷ This is close to the solubility limit in our experiments.