Surface active properties of the synthesized surfactants.

ILs	CMC (mmol L−1)	pC20	γ cmc (mN m−1)	A min (nm2)	Γ max (μmol m−2)	Π cmc (mN m−1)	CMC/C20
[C12mpy][Br]	9.83	2.8	39.2	0.903	1.84	32.9	6.22
[C14mpy][Br]	2.26	3.1	38.8	0.794	2.09	33.3	2.86
[C16mpy][Br]	0.508	3.8	37.6	0.697	2.38	34.5	3.22
[C12py][Br]	10.0 (ref. 46)	2.3 (ref. 47)	39.3 (ref. 26)	0.71 (ref. 26)	2.34 (ref. 26)	32.93 (ref. 47)	2.53 (ref. 47)
[C14py][Br]	2.70 (ref. 46)	—	38.0 (ref. 26)	0.86 (ref. 26)	1.93 (ref. 26)	—	—
[C16py][Br]	0.64 (ref. 46)	2.7 (ref. 48)	44.0 (ref. 48)	1.26 (ref. 48)	1.32 (ref. 48)	28.5 (ref. 48)	—
			45.0 (ref. 49)
DTAB45	12.45	2.1	—	0.476	3.49	32.4	1.57
TTAB45	3.60	2.9	—	0.514	2.09	32.9	2.86
CTAB45	0.89	3.2	—	0.459	3.62	28.1	1.41