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Cationic Surfactants and Quaternary Derivatives for Hair and Skin Care
Published in Randy Schueller, Perry Romanowski, Conditioning Agents for Hair and Skin, 2020
Matthew F. Jurczyk, David T. Floyd, Burghard H. Grüning
Amine oxides are another group of quasi-cationic, nitrogen-based products which display anionic surfactant compatibility. Amine oxides are prepared by Cocarnine oxide. R represents the alkyl groups derived from coconut oil. (From Ref. 113.) reacting tertiary amines with hydrogen peroxide. They are nonionic at alkaline pH conditions, but gain positive charges and exhibit cationic activity in acidic solutions. Although they have been incorporated into shampoos and other personal care products, amine oxides play their greatest commercial role in household, industrial, and institutional cleansers. See Figure 4.
Synthesis, characterization, and surface properties of amide amine oxides based on natural vegetable oil
Published in Journal of Dispersion Science and Technology, 2018
Ye-ming Xu, Hong-qin Liu, Bao-cai Xu, Gui-ju Zhang
Castor oil amide amine oxide (MS, m/z = 385.0, 367.2, 369.2, and 371.4) were ascribed to ricinoleyl amine oxide (C18:1, containing –OH), linoleoyl amine oxide (C18:2), oleoyl amine oxide (C18:1), and stearyl amine oxide (C18), respectively. FTIR spectra (KBr): The band at 3370.43 cm−1 corresponds to the stretching vibration of N-H and –OH. The stretching bands at 2923.92 cm−1 and 2855.27 cm−1 characterize the –CH3 and –CH2 groups, respectively. The stretching band at 1,654.21 cm−1 characterizes the C˭O and C˭C groups. The stretching band at 1568.55 cm−1 characterizes the N-H group, and the band at 1465.28 cm−1 is assigned to the bending vibration of C–H. The stretching band at 1271.07 cm−1 characterizes the C–N group. The band appearing at 957.85 cm−1 corresponds to the stretching vibration of N–O, indicating amine oxides formation.