Magid, L. J.; Han, Z.; Li, Z.; Butler, P. D. published an article in Journal of Physical Chemistry B. The title of the article was 《Tuning the Contour Lengths and Persistence Lengths of Cationic Micelles: The Role of Electrostatics and Specific Ion Binding》.Formula: C7H3Cl2NaO2 The author mentioned the following in the article:
Small-angle scattering was used to obtain detailed information on micellar contour lengths and persistence lengths, a measure of micellar flexibility, for mixed micelles of cetyltrimethylammonium 2,6-dichlorobenzoate and cetyltrimethylammonium chloride in H2O as a function of surfactant and salt concentrations and the relative amounts of the 2 counterions (the counterion inventory) at the micellar surface. Increasing amounts at the surface of the penetrating counterion of the pair, 2,6-dichlorobenzoate, lowers the 1-dimensional bending modulus of the micelles, making them more flexible. Micellar contour lengths exhibit a maximum with increasing amounts of 2,6-dichlorobenzoate at the micellar surface. This is understood in terms of decreases in the micellar end-cap energies, Ec, at high concentrations of penetrating counterion. By decreasing the effective micellar surface charge d., penetrating counterions also cause decreased contributions from electrostatic repulsion, Ee, which retard micellar growth. At low ionic strengths, this results in more extensive micellar growth upon addition of Na 2,6-dichlorobenzoate rather than NaCl. In the experiment, the researchers used Sodium 2,6-dichlorobenzoate(cas: 10007-84-8Formula: C7H3Cl2NaO2)
Sodium 2,6-dichlorobenzoate(cas: 10007-84-8) belongs to organochlorine compounds. The wide structural variety and divergent chemical properties of organochlorides lead to a broad range of names, applications, and properties.Formula: C7H3Cl2NaO2 Organochlorine compounds have wide use in many applications, though some are of profound environmental concern, with TCDD being one of the most notorious.
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics