Contact
    Start Publications Physicochemical Properties of Monolayers of a Gemini Surfactant ...
    ←  Publication Finder
    KSV NIMA

    Physicochemical Properties of Monolayers of a Gemini Surfactant with a Minimal-Length Spacer

    Year: 2022

    Journal: Langmuir, Volume 38, DEC 27, page 16004–16013

    Authors: Singh, Srikant Kumar; Yeboah, Alfred; Bu, Wei; Sun, Pan; Paige, Matthew F.

    Organizations: Natural Sciences and Engineering Research Council; Canadian Foundation for Innovation; Divisions of Chemistry (CHE); National Science Foundation [NSF/CHE-1834750]; U.S. DOE [DE-AC02-06CH11357]; University of Saskatchewan; Materials Research (DMR); Argonne National Laboratory

    Fundamental physical chemical properties of monolayers formed from a new anionic gemini surfactant with a minimal-length (single-bond) spacer unit have been investigated at the air-water interface and compared with those of monolayers formed from affiliated comparator surfactants. The minimal spacer surfactant, dubbed C-18-0-C-18, exhibited strikingly different packing characteristics from an anionic gemini surfactant with a comparatively bulkier headgroup, including the formation of close-packed, crystalline films, and shared similar characteristics to simple fatty acid-based monolayers. Monolayers of C-18-0-C-18 also exhibited good stability at the air-water interface and transferred with reasonable efficiency to solid substrates, although the film integrity was compromised during the transfer. Results from this work suggest that the single-bond spacer approach might be more broadly useful for designing gemini surfactants that pack efficiently into ordered monolayers.
    View publication