Table 2. Best-fit parameters for cationic surfactants in EAN and EtAN. φ_mic is the volume fraction of scatterers, CMC is the critical micelle concentration estimated from φ_mic, r is the micelle radius, SLD_IL is the scattering length density of the IL and PD is the Schultz polydispersity.

IL	Surfactant	φ mic	CMC (wt%)	r (Å)	SLDIL × 10–6 (Å–2)	Schultz PD
EAN	DAN	0.022	3.2	14	2.60	0.24
	DMAN	0.013	3.9	13	3.33	0.19
	DDMAN	0.009	4.3	12	3.32	0.20
	DTAN	0.004	4.7	11	3.33	0.21
	DTAC	0.006	4.5	11	3.33	0.17
	DTAB	0.025	3.0	15	3.24	0.10
			2.3 ± 0.2 a
EtAN	DAN	0.015	3.9	12	4.00	0.29
	DMAN	0.011	4.2	13	3.99	0.19
	DDMAN	0.007	4.5	14	4.00	0.00
	DTAN	0.081	—	20	2.96	0.19
	DTAC	0.087	—	19	3.46	0.24
	DTAB	0.087	—	20	3.67	0.19

^a Ref. 17.