1938-17-6Relevant academic research and scientific papers
A family of novel bio-based zwitterionic surfactants derived from oleic acid
Zhang, Qi-Qi,Cai, Bang-Xin,Gang, Hong-Ze,Yang, Shi-Zhong,Mu, Bo-Zhong
, p. 38393 - 38396 (2014)
Bio-based zwitterionic surfactants have attracted increasing attention due to their renewable resources and excellent surface properties. A family of bio-based zwitterionic surfactants derived from oleic acid was prepared using a facile and high-yield route. All these bio-based zwitterionic surfactants exhibited outstanding surface properties. the Partner Organisations 2014.
A high yield method for the direct amidation of long-chain fatty acids
Wang, Man-Yu,Gang, Hong-Ze,Zhou, Lei,Liu, Jin-Feng,Mu, Bo-Zhong,Yang, Shi-Zhong
, p. 99 - 108 (2019/12/12)
The amidation of long-chain fatty acids is the key step for preparing surfactants with excellent interfacial activity. Gas chromatography–mass spectrometry was employed to detect the reactants and products in the direct amidation reactions. The conversion and the concentration of the amides in the reaction process were also investigated to determine the best catalyst, the reaction rate constants, and activation energy. It was identified that the amidation reaction of the long-chain phenyl fatty acid was a zero-order reaction and 3,4,5-trifluorophenylboronic acid was the most effective catalyst by which the activation energy reduced to 55.79 kJ/mol from 95.44 kJ/mol. The method can be applied to other long-chain fatty acids, saturated or unsatureated. The turning-over-temperature was 156°C, over which high yields can be achieved without any catalyst. These provide a reference for the preparation of long-chain fatty acid amides.
