Table 1.

Physicochemical properties of the monomers and polymers of chiral amino acid derived cationic surfactants undecenoxy carbonyl-L-leucinol bromide (L-UCLB) and undecenoxy carbonyl-L-pryrrolidinol bromide (L-UCPB).

Characteristic of the ionic liquid type monomeric surfactants	L-UCPB	L-UCLB
Critical micelle concentration (CMC) a) [mM]	1.15 ± (0.01)*	0.84 ± (0.05)*
Aggregation numberb)	95 ± (0.09)*	97 ± 0.04
Polarity (I1/I3) ratio c)	1.095 ± (0.001)*	1.180 ± 0.040
Optical rotationd)	−2.35 ± (0.02)*	+21.67 ± 0.03
Partial specific volumee)	0.8281 ± (0.0036)*	0.7185 ± 0.00
Electroosmotic mobility μeof (cm2V−1S−1)f)	−2.83 × 10−4 (± 1.56 × 10−5)*	−2.42 × 10−4 (± 5.31 × 10−6)*
Effective electrophoretic mobility μep (cm2V−1S−1)f)	2.08 × 10−4 (± 1.54 × 10−5)*	1.94 × 10−4 (± 7.49 × 10−7)*
Migration-time window (tmc/to)f)	3.79 (± 0.20)*	5.09 (± 0.38)*
Characteristic of the polymeric surfactants	poly-L-UCPB	poly-L-UCLB
Aggregation numberb)	34 ± (0.780)*	25 ± (0.034)*
Polarity (I1/I3) ratioc)	1.219 ± (0.001)*	1.22 ± (0.007)*
Optical rotationd)	−7.84 ± (0.04)*	+17.45 ± (0.64)*
Partial specific volumee)	0.8408 ± (0.0075)*	0.7634 ± (0.0008)*
Electroosmotic mobility μeof (cm2V−1S−1)f)	−2.54 × 10−4 (± 3.67 × 10−6)*	−2.34 × 10−4 (± 3.12 × 10−6)*
Effective electrophoretic mobility μep (cm2V−1S−1)f)	2.02 × 10−4 (± 2.96 × 10−6)*	1.91 × 10−4 (± 3.52 × 10−6)*
Migration-time window (tmc/to)f)	4.87 (± 0.16)*	5.38 (± 0.53)*

^a)Critical micelle concentration is determined by the surface tension measurements.

^b)Aggregation number is determined by the florescence quenching experiment using pyrene as a probe and cetyl pyridinium chloride as a quencher.

^c)Polarities of the surfactants are determined using ratio of the fluorescence intensity (I₁/I₃) of pyrene.

^d)Optical rotation of 10 mg/mL of monomer and micelle polymers were determined in triply deionized water were obtained at 589nm [sodium D line].

^e)Partial specific volumes were determined by the density measurements at different surfactant concentrations.

^f)The μ_ep values for all monomer and polymeric ionic liquids were determined using methanol as t_o marker and dodecanophenone as t_mc tracer. Experimental conditions: 64.5 cm (56 cm effective length) × 50 μm ID capillary with an applied voltage of −20 kV at 25 °C using a running buffer of 25 mM each of NaH₂PO₄ and Na₂HPO₄, 100 mM monomer and polymeric ionic liquids; dodecanophenone introduction, 50 mbar for 10 s (1.5 mg /mL in 50:50 MeOH/H₂O).

^*Standard deviations are given in parentheses.