6533b872fe1ef96bd12d3b3a
RESEARCH PRODUCT
Wide Angle X-ray Scattering as a Technique of Choice to Probe Asphaltene Hierarchical Structures
Vincenzo Turco LiveriPaolino CaputoCesare Oliviero RossiBagdat TeltayevPietro Calandrasubject
Materials scienceField (physics)ScatteringBiomedical EngineeringBioengineering02 engineering and technologyGeneral Chemistry021001 nanoscience & nanotechnologyCondensed Matter PhysicsInstabilityComputational physicsGeneral Materials Science0210 nano-technologyWide-angle X-ray scatteringAsphaltenedescription
Bitumens are composite systems extensively used in road pavements. Due to their complex nature, a rational understanding of the relationships between composition, structure and performances of these materials is still far from being achieved, so research attempting to shed more light in this field is required. Here, we exploit Wide Angle X-ray Scattering (WAXS) as a technique of choice to shed light on the bitumen structure at different length scales. Diagnostic fingerprints, characterizing the WAXS profile, are correlated to specific Bragg distances which can be reasonably attributed to the molecular and supramolecular aggregation taking place at various levels of complexity leading to the formation of hierarchical structures. Due to the inherent instability of these materials some indications are given to obtain reliable structural data.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-01-24 | Journal of Nanoscience and Nanotechnology |