| dc.description.abstract | Oil-in-water emulsions are widely used in various industrial applications such as food,
pharmaceuticals, and cosmetics. An oil-in-water emulsion is a colloidal system in which oil
droplets are dispersed in water with the help of emulsifiers. The emulsifiers can stabilize the oil
droplets in the water phase, preventing them from coalescing and being separated from the water,
resulting in a stable mixture that can be used in various industrial processes. Lignin
macromolecules, derived from renewable biomass resources, have gained extensive interest during
the past decade as a sustainable substitute for oil-based synthetic materials. One of the goals of
this dissertation was to formulate and develop a lignin-based emulsifier that is renewable,
biodegradable, and non-toxic from the molecular level to the macroscopic level. To obtain the
desired physicochemical properties, chemical modifications were conducted. We utilized solventfree reactions to synthesize sulfo-alkylated lignin-based emulsifiers in a facile green process. Oilin-water emulsions were formulated in the presence of emulsifiers, and a vertical scan analyzer
was used to monitor their stability to show their potential for stabilizing emulsions. [...] | en_US |
