2023 Volume 23 Issue 12 Pages 617-624
Homogeneous polyoxypropylene (PO)-polyoxyethylene (EO)-type novel nonionic surfactants and homogeneous EO-type novel nonionic surfactants with multi-branched double chains were synthesized, and their adsorption and aggregation properties were investigated. Furthermore, the microstructures of the foams formed by the amino acid-type novel surfactant and homogeneous EO-type surfactant with multi-branched double chains were investigated by using small-angle neutron scattering. The information such as the thickness of the foam film, the presence of micelles in the foam film, and the average radius of the bubbles was clarified.