22890-11-5Relevant articles and documents
Synthesis and comparative behaviour study of fluorocarbon and hydrocarbon cationic surfactants in aqueous media
Ngo, Thi Huong Viet,Damas, Christine,Naejus, Régine,Coudert, Robert
, p. 704 - 708 (2010)
A series of perfluorinated cationic surfactants and their corresponding hydrocarbon ones whose general formula is CnX2n+1-C(O)NH- (CH2)3-N+Me3, I-, with X = F, H and n = 9, 11, have been synthesized via two steps. Their aggregative and surface-active properties were studied in aqueous solution using tensiometry and conductimetry. The critical micelle concentrations and the molecular areas at the air/ water interface of fluorinated surfactants are lower than those of their hydrocarbon homologues. Micellar aggregation numbers and geometric packing parameters have been investigated. The results indicated that fluorocarbon surfactants tend to form lamellar aggregates while the hydrocarbon ones associate into spherical aggregates.
Synthesis and antimicrobial characterization of novel l-lysine gemini surfactants pended with reactive groups
Tan, Hong,Xiao, Huining
, p. 1759 - 1761 (2008/09/18)
A series of novel quaternary ammonium gemini surfactants of l-lysine containing ester group were synthesized with high yield rate. The antibacterial and antifungal activities of these gemini surfactants were evaluated by quantifying the minimal inhibitory concentration (MIC). The results indicated that the quaternary ammonium gemini surfactants exhibited improved activity against a broad spectrum of Gram-positive and Gram-negative bacteria as well as fungi. The pended ester group provides a reactive site for incorporating the surfactant into polymers, thus leading to the polymers with high antimicrobial efficiency.
Carboxamide derivative, processes for producing the same, and detergent composition
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Page/Page column 11-12, (2008/06/13)
To provide: a carboxamide derivative having reduced content of amide ester; a method for producing thereof; and a detergent composition containing the carboxamide derivative and having excellent low-temperature stability. One method for producing a carboxamide derivative is to react carboxamide, produced with a manufacturing method of carboxamide including 0.02% by weight to 0.18% by weight of amide ester, with hydrogen peroxide, wherein the method includes a carboxamide synthesis process to synthesize carboxamide by reacting diamine with fatty acid ester at a molar rate of 1.20 to 1.60. Another method for producing a carboxamide derivative is to react the carboxamide with monohaloalkylcarboxylic acid or a salt thereof. A carboxamide derivative is produced by the method for producing a carboxamide derivative. A detergent composition includes the carboxamide derivative. The carboxamide derivative is preferably amidoamine oxide or amide betaine.