ALT AIChE Annual Meeting - Polymer Structural Characterization: This session invites submissions on characterizing polymer structure and organization at multiple length scales from micro- to meso-scale. This session includes studies leveraging experimental scattering, spectroscopy, and microscopy techniques, including those with significant computational and theoretical components or complementary dynamic or mechanical measurements. All application areas are welcome, though we especially encourage submissions for systems relevant to organic electronics or photonics, and ionic or mixed conductors. Contributions addressing all phases and geometries of polymers are welcome, including bulk and confined solutions, melts, and gels. ***Note to faculty candidates: please include a note to the session chair during submission to alert them to your status***