Effect of Surfactants on Association Characteristics of Di- and Triblock Copolymers of Oxyethylene and Oxybutylene in Aqueous Solutions: Dilute Solution Phase Diagrams, SANS, and Viscosity Measurements at Different Temperatures

Table 5

Intrinsic viscosity [η], and Huggins constant k_H, for copolymer-surfactant aqueous solutions at different temperatures.

T°C	𝐶SDS g·dl^−1	[η] dl·g^−1	kH	T°C	𝐶DTAB g·dl^−1	[η] dl·g^−1	kH	T°C	𝐶TX-100 g·dl^−1	[η]Dl·g^−1	kH
B-1-SDS				B-1-DTAB				B-1-TX-100
30	0	0.036	6.9
50	0	0.060	3.4
30	0.001	0.038	5.5	30	0.05	0.037	6.2	30	0.01	0.039	5.8
50	0.001	0.060	3.3	51	0.05	0.058	5.6	50	0.01	0.064	2.0
30	0.05	0.042	4.3	30	0.1	0.042	4.5	30	3.0	0.054	2.9
52	0.05	0.064	2.4	55	0.1	0.071	1.8	48	3.0	0.071	1.7
30	1.0	0.066	1.7	30	1.0	0.062	2.0	30	6.0	0.068	1.8
B-2-SDS				B-2-DTAB				B-2-TX-100
30	0	0.032	1.2
70	0	0.069	1.9
30	0.0005	0.035	1.0	30	0.0005	0.034	1.0	30	0.01	0.036	1.0
68	0.005	0.072	1.7	67	0.0005	0.069	1.8	69	0.01	0.049	0.2
30	0.05	0.038	0.8	30	0.1	0.040	0.7	30	3.0	0.050	0.4
71	0.05	0.074	1.6	75	0.1	0.085	1.2	56	3.0	0.072	0.8
30	1.0	0.055	0.4	30	1.0	0.053	0.4	30	6.0	0.061	0.3