Synthesis and Performance of Potassium Monoester Maleate: A Multifunctional Surfactant for Hair Repair

The study presents a novel approach to designing surfactants with hair repair capabilities by introducing an α, β-unsaturated carbonyl group. Potassium monoester maleates (PMMs) were synthesized and characterized, showing promising properties for haircare applications. The surfactants demonstrated strong emulsifying and foaming power, surpassing traditional SLES. Tests confirmed that PMMs could effectively repair the hydrophobic barrier of damaged hair through a thiol-Michael click reaction, improving the contact angle and reducing dry combing work significantly. This research highlights the potential of PMMs in developing multifunctional surfactants for haircare products.