Composition Gradient High-Throughput Polymer Libraries Enabled by Passive Mixing and Elevated Temperature
High-throughput experimentation (HTE) methods are key to enabling informatics-driven workflows to accelerate discovery of high-performance multicomponent materials. Here, we designed a solution coating system able to operate at temperatures over 110 °C to deposit composition gradient polymer libraries. The methodology provides an avenue for efficiently screening multiparameter spaces of a wide range of materials relevant to today’s applications.
The system is equipped with a custom, solvent-resistant, metallic passive mixer module for high-temperature mixing of polymer solutions. •Residence time distribution (RTD) models were generated and tested using poly(3-hexylthiophene) (P3HT) – poly(styrene) (PS) blends for prediction of coating conditions necessary to generate composition gradient films. •High temperature gradient film coating was demonstrated using poly(propylene) (PP) and poly(styrene) (PS) blends.