Surface dilational moduli of polymer and blended polymer monolayers spread at air-water interfaces

•Surface dilational moduli of polymers and blended polymer monolayers spread at air–water interfaces were reviewed.•Condensed polymer monolayers showed larger surface dilational moduli than expanded polymer monolayers.•Respective polymers of miscible blended polymer monolayers cooperatively contribute to provide their dilational surface moduli.

Surface dilational moduli of polymer monolayers, blended polymer monolayers, and polymer particle monolayers spread at air–water interfaces are reviewed, focusing on measurements using surface pressure isotherm, surface pressure relaxation, and oscillating barrier methods. Differences between the surface dilational moduli of condensed polymer monolayers and expanded polymer monolayers are explored. Moreover, the features of the surface dilational moduli in blended polymer monolayers are discussed in terms of their miscibility.

Graphical abstractLissajous orbits can be obtained from oscillatory responses of surface pressure π by changes in surface area A.Figure optionsDownload full-size imageDownload as PowerPoint slide