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 similar to 1 S/cm for the highest molar mass and longest backbone-branching point distance.

R. Hinojosa, D., J. Pataki, N., Rossi, P., Erhardt, A., Guchait, S., Pallini, F., et al. (2024). Solubilizing Benzodifuranone-Based Conjugated Copolymers with Single-Oxygen-Containing Branched Side Chains. ACS APPLIED POLYMER MATERIALS, 6(1), 457-465 [10.1021/acsapm.3c02137].

Solubilizing Benzodifuranone-Based Conjugated Copolymers with Single-Oxygen-Containing Branched Side Chains

Pallini F.;
2024

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 similar to 1 S/cm for the highest molar mass and longest backbone-branching point distance.
Articolo in rivista - Articolo scientifico
benzodifuranone polymers; branched side chains; branching point variation; n-type conjugated polymers; organic thermoelectrics; solubility;
English
7-dic-2023
2024
6
1
457
465
none
R. Hinojosa, D., J. Pataki, N., Rossi, P., Erhardt, A., Guchait, S., Pallini, F., et al. (2024). Solubilizing Benzodifuranone-Based Conjugated Copolymers with Single-Oxygen-Containing Branched Side Chains. ACS APPLIED POLYMER MATERIALS, 6(1), 457-465 [10.1021/acsapm.3c02137].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/477402
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