Anionic detergents, Interaction with

Polymerization and depolymerization of sihcate anions and their interactions with other ions and complexing agents are of great interest in sol—gel and catalyst manufacture, detergency, oil and gas production, waste management, and limnology (45—50). The complex silanol condensation process may be represented empirically by... 

Anionic Surfactants. PVP also interacts with anionic detergents, another class of large anions (108). This interaction has generated considerable interest because addition of PVP results in the formation of micelles at lower concentration than the critical micelle concentration (CMC) of the free surfactant the mechanism is described as a "necklace" of hemimicelles along the polymer chain, the hemimicelles being surrounded to some extent with PVP (109). The effective lowering of the CMC increases the surfactant s apparent activity at interfaces. PVP will increase foaming of anionic surfactants for this reason. 

In the presence of an EOF, however, they migrate slowly towards the cathode. If now compounds are introduced into the capillary that interact with the SDS micelles, the mobility of these compounds will be influenced by the movement of the micelles to an extent that depends on the strength of this interaction. MECC is carried out using various forms of detergent anionic (e.g., SDS or Na-cholate), cationic (e.g., cetyltrimethylammonium bromide, CETB) and neutral (e.g., Triton X-100). 

These observations have also found application in softergents. The harder the water, the more the cationic softener deposition from an anionic detergent [9], since the compression of electrical double layers leads to a reduction of the anionic-cationic interaction. The deposition from a nonionic detergent may drop from 100% to 50% [9] as the softener, becoming less soluble, tends to interact more strongly with the hardness-insensitive surfactant. 

W. L. Mattice, "Conformational Changes Accompanying the Interaction of Anionic Detergents with Cationic Polypeptides", presented at the Amer. Chem. Soc. Mtg., Philadelphia, Aug. 1984. 

Interaction of Anionic Detergents with Cationic Residues in Polypeptides... 

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