期刊
ACS APPLIED MATERIALS & INTERFACES
卷 11, 期 50, 页码 47320-47329出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b15625
关键词
aerosol synthesis; conducting polymer; PEDOT; submicron particle; conjugation length; doping level; solid-state NMR
资金
- Department of Chemistry at Washington University
Current state-of-the-art synthetic strategies produce conducting polymers suffering from low processability and unstable chemical and/or physical properties stifling research and development. Here, we introduce a platform for synthesizing scalable submicron-sized particles of the conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT). The synthesis is based on a hybrid approach utilizing an aerosol of aqueous oxidant droplets and monomer vapor to engineer a scalable synthetic scheme. This aerosol vapor polymerization technology results in bulk quantities of discrete solid-state submicron particles (750 rim diameter) with the highest reported particle conductivity (330 +/- 70 S/cm) so far. Moreover, particles are dispersible in organics and water, obviating the need for surfactants, and remain electrically conductive and doped over a period of months. This enhanced processability and environmental stability enable their incorporation in thermoplastic and cementitious composites for engineering chemoresistive pH and temperature sensors.
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