Publication date: 15th December 2025
Continuous flow chemistry offers a fast entry to commercial production for innovative polymers of diverse nature. A field that could hugely benefit from this gateway is organic electronics. For some of the most promising organic semiconductor technologies, notably organic photovoltaics, push-pull type conjugated polymers have afforded the optimum performance metrics to date. However, the production of these polymers by classical batch synthesis procedures is accompanied by inherent issues regarding the reproducibility of material properties, such as molar mass, end-group fidelity, and structural defects, which significantly impact the final device performance. Flow chemistry could provide (part of) a solution here, but its full potential still has to be unravelled and embraced by the academic community as well as the interested industries.
In this presentation, I will illustrate how batch-to-batch reproducibility in the synthesis of push-pull type conjugated polymers has been hindering progress in the field over the last 15 years, and how continuous flow chemistry can be applied to address this issue.[1,2] On top, some examples will be given to show how flow methods can be beneficial for molar mass or homocoupling defect screening, and for the construction of all-conjugated block copolymers for single-component organic solar cells.[3]
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