SYNTHESIS OF ENVIRONMENTALLY FRIENDLY OLEOCHEMICAL-BASED ANIONIC SURFACTANTS AND THEIR APPLICATIONS IN COSMETIC FORMULATIONS

• Main Author: Angelia Susanti, Delfia
• Format: Final Project
• Language: Indonesia
• Subjects: Kimia
• Online Access: https://digilib.itb.ac.id/gdl/view/82933
• Institution: Institut Teknologi Bandung

Indonesia is the world's largest producer of palm oil. One of the palm oil-derivved products of palm oil are fatty alcohols that widely used in the cosmetics industry as a building block for surfactant synthesis. A surfactant is an active surface agent that reduces surface tension and is a vital component in cosmetics as an emulsifier, wetting agent, foaming agent, and dispersant. Commercial surfactants are usually produced from raw materials originating from the petrochemicals, involving process that increase carbon emission and in many cases non-eco friendly. Therefore, this research aims to obtain surfactants from renewable sources, specifically derivatives of palm oil, through an environmentally friendly synthesis process. In this research, the synthesized surfactant is based on fatty alcohol, specifically lauryl alcohol derived from the palm oleochemical industry. Lauryl glyceryl ether (LGE), dilauryl glyceryl ether (DLGE), epoxidized dilauryl glyceryl ether (EDLGE), lauryl ethyl acetate (LEA) are obtained from the Williamson etherification reaction. The sulfonation reaction of LGE produces Lauryl Glyceryl Ether Sulfonate (LGES). The surfactant test of LGES has a hydrophilic-lipophilic balance (HLB) value of 14.03 and can reduce interfacial tension (IFT) with a critical micelle concentration (CMC) value of 21.29 mN/m. The antioxidant test of LGES using the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) method yields an IC50 value of 750.14 ppm, indicating very weak antioxidant activity. The emulsion stability test of LGES with a surfactant concentration of 6% shows better stability compared to LGES emulsion at 3%. Based on the test results, LGES surfactant has the potential to be used as an emulsifying agent, moisturizer, and anti-foaming agent in cosmetics.