AI Article Synopsis

  • The study focuses on creating branched side chains containing oxygen to improve the solubility of specific n-type copolymers made from benzodifuranone (BDF), isatin, and thiophene units.
  • A simple and flexible synthetic process is introduced, utilizing accessible starting materials to achieve side chains with different distances between the main backbone and branching points.
  • These modifications lead to highly soluble BDF-thiophene copolymers, reaching solubility levels of up to 90 mg/mL, and enhance their electrical conductivity, which can reach about 1 S/cm for high molar mass materials.

Article Abstract

Single-oxygen-containing branched side chains are designed and used to solubilize n-type copolymers consisting of BDF (benzodifuranone), isatin, and thiophene-based units. We present a simple synthetic approach to side chains with varying linker distances between the backbone and the branching point. The synthetic pathway is straightforward and modular and starts with commercially available reagents. The side chains give rise to excellent solubilities of BDF-thiophene copolymers of up to 90 mg/mL, while still being moderate in size (26-34 atoms large). The excellent solubility furthermore allows high molar mass materials. BDF-thiophene copolymers are characterized in terms of optoelectronic and thermoelectric properties. The electrical conductivity of chemically doped polymers is found to scale with molar mass, reaching ∼1 S/cm for the highest molar mass and longest backbone-branching point distance.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10788869PMC
http://dx.doi.org/10.1021/acsapm.3c02137DOI Listing

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