Effects of CuCl_𝟐 on the Lyotropic Liquid Crystalline Behavior in Nonaqueous and Aqueous Medium

Table 2

Thermodynamic parameters calculated on the base of DSC profiles (a) non-aqueous ternary mixtures (b) aqueous ternary mixtures.

(a)

Concentration 𝑥 (wt%)	Phase	Disordering temperatures (°C)	Enthalpy (ΔH)	Entropy (ΔS)	Melting temperature (°C)	Enthalpy (ΔH)	Entropy (ΔS)
Pure	L	—	—	—	104	−37.5	0.3
1%	No phase	42.6	5.05	−0.118	77	−173.9	2.26
2%	H + L	42.8	8.8	−0.2	73	−44.02	0.6
4%	H	45.4	14.2	−0.3	74	−38.49	0.5
5%	Disrupt	47.2	−32.43	0.6	79	−30.42	0.3
6%	One L peak	48.4	−123.19	2.5	76	−100.9	1.3
10%	L	46.7	−33.35	0.7	78	−45.39	0.5

(b)

Concentration 𝑥 (wt%)	Phase	Disordering temperatures (°C)	Enthalpy (ΔH)	Entropy (ΔS)	Melting temperature (°C)	Enthalpy (ΔH)	Entropy (ΔS)
Pure	No phase	42.1	−74	1.75	65	30.04	0.4
1%	Cubic + H	33.6	−22.2	0.6	76	−777.5	10
2%	2D H	35.1	−82.17	2.3	76	−527.80	6.9
4%	2D H	34.4	−63.03	1.8	74	−600.46	8.1
5%	No	35.6	−117.08	3.2	74	−533.81	7.5
6%	No	—	—	—	75	−454.7	6.0
10%	No	37.5	−97.59	2.6	70	−384.4	5.4