Abstract
A synchrotron-based scanning transmission X-ray microscope (STXM) is used to investigate Micronal ® phase-change microcapsules. Prolonged X-ray illumination of the specimen leads to the breaking of the microcapsules’ protective polymer shell and a partial separation of the core–shell species occurs. The paraffin wax and acrylic polymer components are characterized by carbon K-edge near X-ray edge absorption fine structure (NEXAFS) spectroscopy and components distribution mapping of the beam-damaged specimen is performed.
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