Synthesis of 1,3-bis-[(dodecanoyl oxypropyl dimethylammonium) propanel dibromide ester-quat surfactant: Micellar, thermodynamic and corrosion-inhibiting properties

被引:2
作者
Alehyen, S.
Benssejjay, F.
El Achouri, M. [1 ]
Infante, M. R.
Perez, L.
Benssouda, Y.
机构
[1] Ecole Normale Super Rabat, Lab Chim Organ & Etud Physicochim, Rabat, Morocco
[2] Ecole Normale Super Rabat, Lab Physicochim Mat, Rabat, Morocco
[3] CSIC, Dept Surfactant Technol, Inst Invest Quim & Ambientales Barcelona, Barcelona, Spain
[4] Fac Med & Pharm, Lab Pharm Galen, Rabat, Morocco
关键词
gemini surfactant; bis-ester-quat; critical micellar concentration; surface tension; corrosion inhibitor; ENTHALPY-ENTROPY COMPENSATION; ALKANEDIYL-ALPHA; OMEGA-BIS(DIMETHYLALKYLAMMONIUM BROMIDE) SURFACTANTS; CATIONIC GEMINI SURFACTANTS; MILD-STEEL; IRON CORROSION; CARBON-STEEL; ADSORPTION; BEHAVIOR;
D O I
10.3139/113.100336
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Ester-quat surfactant: 1,3-bis-[(dodecanoyl oxypropyl dimethylammonium) propane] dibromide referred as 12-3-3-3-12 was synthesized, purified and characterized by Elemental Analysis, H-1-NMR, C-13-NMR, IR and Mass Spectra. The thermodynamic properties of aqueous solutions of this ester-quat were investigated using Electrical Conductivity and SurfaceTension measurements. The corresponding parameters of micellisation were determined for each technique. otherwise the inhibitive action of the ester-quat (12-3-3-3-12) on the corrosion behaviour of iron was investigated in HCl and H2SO4 medium by means Electrochemical Resistance and Polarisation methods. The ester-quat 12-3-3-3-12 acts as a cathodic-type inhibitor. The maximum inhibition efficiency was reached around the critical micellar concentration. The ester-quat appears to be adsorbed in the metal/ liquid interface through the general mode following the Frumkin adsorption model.
引用
收藏
页码:160 / 167
页数:8
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