Structure and lateral Iiteraction in mixed monolayers of dioctadecyldimethylammonium chloride (DOAC) and stearyl alcohol

Simple item page
dc.contributor.authorGe, Aen_AU
dc.contributor.authorWu, Hen_AU
dc.contributor.authorDarwish, TAen_AU
dc.contributor.authorJames, Men_AU
dc.contributor.authorOsawa, Men_AU
dc.contributor.authorYe, Sen_AU
dc.date.accessioned2013-10-04T03:31:24Zen_AU
dc.date.available2013-10-04T03:31:24Zen_AU
dc.date.issued2013-05-07en_AU
dc.description.abstractπ-A isotherms, atomic force microscopy (AFM), and sum frequency generation (SFG) vibrational spectroscopy are employed to investigate the molecular structure and lateral interactions in mixed monolayers of dioctadecyldimethylammonium chloride (DOAC) and stearyl alcohol (SA) at air/water and air/solid interfaces. To avoid possible interference between the two molecules in the SFG spectroscopic measurements, perprotonated DOAC and perdeuterated SA (dSA) were used. The thermodynamic analyses for the π-A isotherms show that DOAC is miscible with dSA. SFG observations reveal that DOAC molecules become conformationally ordered as dSA molecules are introduced into the monolayer. AFM observations demonstrate coexistence of DOAC-rich and dSA-rich domains in the mixed monolayer with ratios different from their initial composition in the subphase. The present study suggests that DOAC molecules in the mixed monolayer are condensed by mixing with dSA in which the repulsive interactions between positively charged head groups of the DOAC molecules are largely reduced along with an increase of van der Waals interactions with dSA.© 2013, American Chemical Society.en_AU
dc.identifier.citationGe, A., Wu, H., Darwish, T. A., James, M., Osawa, M., & Ye, S. (2013). Structure and lateral Iiteraction in mixed monolayers of dioctadecyldimethylammonium chloride (DOAC) and stearyl alcohol. Langmuir, 29 (18), 5407-5417. doi:10.1021/la400143ken_AU
dc.identifier.govdoc5115en_AU
dc.identifier.issn0743-7463en_AU
dc.identifier.issue18en_AU
dc.identifier.journaltitleLangmuiren_AU
dc.identifier.pagination5407-5417en_AU
dc.identifier.urihttp://dx.doi.org/10.1021/la400143ken_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/4763en_AU
dc.identifier.volume29en_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.subjectSurfactantsen_AU
dc.subjectInteractionsen_AU
dc.subjectMicroscopyen_AU
dc.subjectChloridesen_AU
dc.subjectAlcoholsen_AU
dc.subjectMoleculesen_AU
dc.titleStructure and lateral Iiteraction in mixed monolayers of dioctadecyldimethylammonium chloride (DOAC) and stearyl alcoholen_AU
dc.typeJournal Articleen_AU
Files
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Journal Articles