Comparative study on the surface activity and adsorption behavior of linear fatty alcohol ether carboxylic ester with fatty alcohol ether

Publication date: Available online 19 July 2019Source: Colloids and Surfaces A: Physicochemical and Engineering AspectsAuthor(s): Zhifang Wu, Yunling Li, Mengwei Wang, Jun Li, Zhifei WangAbstractThe linear fatty alcohol ether carboxylic ester (A12/14EC9E-H/A12/14EC9E-Na) surfactants were successfully prepared from the raw materials fatty alcohol ether (A12/14EO9) and succinic anhydride with a green and efficient one-step method. The chemical structure of A12/14EC9E-H was characterized by Fourier transform infrared (FT-IR), 1H-Nuclear magnetic resonance (1HNMR) and Matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF-MS). In addition, a comparative study on the surface activity and adsorption behavior at the air/water interface of A12/14EC9E-H, A12/14EC9E-Na and A12/14EO9 was carried out via various measurements. The results showed that the nonionic surfactant A12/14EC9E-H displayed better surface activity, stronger wetting ability and faster diffusion rate at the air/water interface than the nonionic surfactant A12/14EO9. Furthermore, the adsorption mechanism of A12/14EC9E-H, A12/14EC9E-Na and A12/14EO9 is the mixed diffusion-kinetic adsorption.Graphical Abstract
Source: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Category: Chemistry Source Type: research