Abstract
Abstract A new amphiphilic ionic liquid (IL) was prepared based on the glycolysis product of polyethylene terephthalate (PET) waste. Bis(2-hydroxyethyl) terephthalate (BHET) produced from glycolysis of PET was converted into bis(2-chloroethyl) terephthalate (BCET). The glycidyl 4-nonylphenyl ether (GNE) was reacted with ethanol amine (EA) to form the corresponding amine, 1-((2-hydroxyethyl)amino)-3-(4-nonylphenoxy)propan-2-ol, (HANP) and the formed amine was then ethoxylated using tetraethylene glycol (TEG) to form ethoxylated amine (EHANP). The EHANP was quaternized by BCET to form the corresponding ionic liquid (EHANP-IL). Following the synthesis, the chemical structure was confirmed by Fourier-transform infrared spectroscopy (FTIR), and proton nuclear magnetic resonance (1H NMR). The surface activity and dynamic light scattering (DLS) properties were also investigated. Further, the demulsification efficiencies of synthesized IL and EHANP was evaluated and found that the EHANP-IL was able to demulsify water-in-oil (W/O) emulsions with high efficiency than that of respective EHANP.
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