The poly(3,4-ethylenedioxythiophene) (PEDOT) family of polymers is a technologically important class of conducting polymers showing high stability, medium band gap, low redox potential and high optical transparency in the electrically conductive state. While PEDOT nanotubes and nanofibres have been synthesized electrochemically, significant opportunity exists for developing a convenient chemical synthetic route for the bulk synthesis of nanostructuredPEDOT for potential use in the design of next-generation nano-electronic circuits and field emission devices. In this paper, chemical oxidative polymerization was used to synthesize PEDOT nanoparticles. These nanoparticles were co-electrospun with poly( L-lactic acid) from a solution in acetone and N, N-dimethylformamide. The PEDOT particleswere analysed using attenuated total reflectance-Fourier transform infrared spectroscopy andparticle size distribution using dynamic light scattering. The synthesized nanofibre mats were studied using differential scanning calorimetry and scanning electron microscopy, and conductivity was measured using a two-probe conductivity tester. (C) 2016 Society of Chemical Industry