Synthesis, Characterization, and Interfacial Properties of an Oligomeric, Cationic Fluorooxetane

摘要: The synthesis and characterization of a cationic oligo(fluorooxetane) surfactant with pendant −C4F9 groups are reported. Molecular area demand at saturation was determined to be 55.6 ± 0.3 A2/molecule characteristic an oligomer. adsorption the air−water interface appears diffusion-limited, dilational rheological properties adsorbed molecules representative “soluble” monolayer. Adsorption dynamics have been measured yielding diffusion coefficients that dependent on concentration in 10-7−10-8 cm2/s range. Complex moduli from interfacial measurements as function oscillation frequency were well fitted Lucassen−van den Tempel equation, providing estimate Gibbs elasticity. combination oligomeric nature fluorosurfactant, short perfluoroalkyl chain its suggests this synthetic approach is attractive route development flu...