Molecular bond selective x-ray scattering for nanoscale analysis of soft matter
- 24 July 2006
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 89 (4), 044101
- https://doi.org/10.1063/1.2234301
Abstract
We demonstrate the utility of resonant soft x-ray scattering in characterizing heterogeneous chemical structure at nanometer length scales in polymer films and nanostructures. Resonant enhancements near the carbon K edge bring bond specific contrast and increased sensitivity to bridge a gap between x-ray absorption contrast in chemical sensitive imaging and higher spatial resolution hard x-ray and neutron small-angle scattering. Chemical bond sensitivity is illustrated in the scattering from latex spheres of differing chemistry and size. Resonant enhancements are then shown to yield sensitivity to heterogeneity in two-phase polymer films for which hard x-ray and nondeuterated neutron scattering lack sensitivity due to low contrast.Keywords
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