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Usage

InChI:InChI=1/C14H28N2O4/c1-15(2)9-11-19-13(17)7-5-6-8-14(18)20-12-10-16(3)4/h5-12H2,1-4H3

Upstream product

• 108-01-0 2-(N,N-dimethylamino)ethanol 
• 627-93-0 hexanedioic acid dimethyl ester 
• 141-28-6 diethyl adipate 
• 111-50-2 Adipic acid dichloride 

Relevant academic research and scientific papers

Novel Synthesized Gemini Surfactant as Corrosion Inhibitor for Carbon Steel in HCl Solution

A quaternary ammonium gemini surfactant containing an ester spacer, namely (diethylhexanedioate)diyl-α,ω-bis(dimethyl myristyl ammonium bromide) (14-DEHA-14) was synthesized using a two-step procedure with dimethyl hexanedioate, dimethylaminoethanol, and 1-bromotetradecane. The chemical structure of the compound was confirmed by infrared (IR) spectrum, 1H nuclear magnetic resonance (NMR), and elemental analysis. The critical micelle concentration was determined by conductivity and tensiometry measurements, and its inhibition effect on corrosion of carbon steel in dilute (1.0 M) hydrochloric acid solution was investigated by weight loss measurements. The results show that the synthesized gemini surfactant acts as an excellent corrosion inhibitor in 1.0 M HCl solution. The adsorption of the inhibitor via chemical adsorption onto the carbon steel surface obeyed the Langmuir adsorption isotherm. A possible corrosion mechanism of the compound is discussed in relation to the calculated thermodynamic parameters and adsorption isotherm.

Phase-transfer catalysis of a new cationic gemini surfactant with ester groups for nucleophilic substitution reaction

A highly effective phase transfer of a quaternary ammonium gemini surfactant with ester groups ((diethylhexanedioate) diyl-α,ω-bis(dimethyl dodecyl ammonium bromide) referred to as 12-10-12) was synthesized with high yield and characterized by infrared spectroscopy, elemental analysis and 1H-NMR. Then, 12-10-12 was used as a phase transfer catalyst to study the catalytic effect on the reaction of anhydrous sodium acetate and 4-methylbenzyl chloride. The possible catalytic mechanism and the influence of surfactant concentration, temperature and type are also discussed. The experimental results showed that the catalysis efficiency was more active than the traditional, single-chained surfactant, tetrabutyl ammonium bromide. It also revealed that the reaction was first-order with respect to the concentration of 4-methylbenzyl chloride. The concentration of 4-methylbenzyl chloride grew linearly with the concentration of 12-10-12 and as the reaction temperature increased. The optimum reaction time was 7 h.