It is important but extremely challenging to identify, select, and design polymer systems. This webinar reports on a breakthrough for user-friendly exploration of polymer property space. MedeA Polymer Expert is a new module for de novo polymer design and analysis. This informatics tool can be used to generate novel candidate polymer repeat units to meet desired performance targets.  It uses a searchable library comprising 1,100,503 repeat units, extensive materials properties, and a lightning-fast search capability.  This webinar will provide a broad introduction to Polymer Expert, a discussion of its underlying science, and a demonstration.