Nonionic surfactants ethoxylated alkanolamide

Nonionic surfactant Ethoxylated alcohol, amine oxide, alkanolamide fatty acid 1-35... 

Many different types of foaming agents are used, but nonionic surfactants are the most common, eg, ethoxylated fatty alcohols, fatty acid alkanolamides, fatty amine oxides, nonylphenol ethoxylates, and octylphenol ethoxylates, to name a few (see Alkylphenols). Anionic surfactants can be used, but with caution, due to potential complexing with cationic polymers commonly used in mousses. 

U.S. 6306805 (2001) Bratescu et al. (Stepan) Anionic-cationic bridging surfactant blends bridging surfactants selected from ethoxylated alkanolamide, semipolar nonionic, amphoteric, zwitterionic Clear solutions at a variety of concentrations in water impart cleaning, foaming, and conditioning properties to hair... 

The antistatic agents recommended for PO fibers are quaternary ammonium salts of fatty acids, alkano-lamines, alkanolamides, polyglycolesters, alkoxylated triglicerides, and ethoxylated tertiary amines (Table 2). The quaternary ammonium compounds and nonionic surfactants dominate this field because of their higher oil solubility and hygroscopicity. 

Iodine vapor is generally suitable for visualization of nonionics and is compatible with densitometry (14,46,47). The plate must be covered with another glass plate or photographed immediately, since the iodine color fades rapidly in air (48). Acid blue 158 has been shown to be a good, general purpose visualizer for surfactants (49). It was demonstrated for detection of AE and NPE as well as ethoxylated amines and an alkanolamide. Cobalt thiocyanate reagent, commonly used for spectrophotometric determination of nonionic surfactants, has also been used as a visualizer for qualitative TLC analysis (50.51). Formation of the 3,5-dinitrobenzoate ester derivatives allows visualization with UV light of surfactants without chromophores (52). 

TABLE 10 TLC Analysis of Alkanolamide and Alkanolamide Ethoxylate Nonionic Surfactants... 

The formulations listed in Tables 21 through 26 illustrate the practical applications of alkanolamides and their ethoxylates. Amide ethoxylates, particularly tallow, are very cost-effective nonionics however, they can be dark in color. Amide ethoxylates, Uke most nitrogen-containing surfactants, do possess dye transfer inhibition properties. 

Chem. Descrip. Alkanolamide ethoxylated surfactant Ionic Nature Nonionic... 

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