Structural organization and phase behaviour of meta-substituted dioctadecylaminobenzoquinones at the air/water interfaceElectronic supplementary information (ESI) available: Experimental details of Langmuir monolayer film preparation and Brewster angle microscopy at the air/water interface, GIXD experimental conditions, multiple compression-expansion cycles, maxima of Bragg peak and Bragg rod fits of the GIXD measurements. See DOI: 10.1039/c8cp07186a

The structural organization and phase behaviour of an amphiphilic zwitterionic quinonemonoimine at the air/water interface are presented. Brewster angle microscopy reveals multiple co-existing phases are observed over the entire isotherm while grazing incidence X-ray diffraction (GIXD) shows that th...

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Hauptverfasser: Behyan, Shirin, Gritzalis, Dimitrios, Schmidt, Rolf, Kebede, Eskedar, Cuccia, Louis A, DeWolf, Christine
Format: Artikel
Sprache:eng
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Zusammenfassung:The structural organization and phase behaviour of an amphiphilic zwitterionic quinonemonoimine at the air/water interface are presented. Brewster angle microscopy reveals multiple co-existing phases are observed over the entire isotherm while grazing incidence X-ray diffraction (GIXD) shows that these comprise both tilted, untilted and multilayer structures with crystalline headgroups. Despite the heterogeneity, the phase transitions are highly reversible over multiple cycles. A Langmuir monolayer formed from a zwitterionic lipid analogue that exhibits a highly reversible transition to a three-dimensional multilayer structure driven by headgroup crystallization.
ISSN:1463-9076
1463-9084
DOI:10.1039/c8cp07186a