Fabrication of a Highly Transparent Conductive Thin Film from Polypyrrole/Poly(methyl methacrylate) Core/Shell Nanospheres

Advanced Functional MaterialsVolume 15, Issue 3 p. 494-502 Full Paper Fabrication of a Highly Transparent Conductive Thin Film from Polypyrrole/Poly(methyl methacrylate) Core/Shell Nanospheres† J. Jang, J. Jang [email protected] Search for more papers by this authorJ. H. Oh, J. H. Oh Hyperstructured Organic Materials Research Center and School of Chemical Engineering, Seoul National University, Shinlimdong 56-1, Seoul 151-742, South KoreaSearch for more papers by this author J. Jang, J. Jang [email protected] Search for more papers by this authorJ. H. Oh, J. H. Oh Hyperstructured Organic Materials Research Center and School of Chemical Engineering, Seoul National University, Shinlimdong 56-1, Seoul 151-742, South KoreaSearch for more papers by this author First published: 04 March 2005 https://doi.org/10.1002/adfm.200400095Citations: 137 † This work was financially supported by the Brain Korea 21 (BK 21) program of the Korean Ministry of Education, and by the Hyperstructured Organic Materials Research Center (HOMRC) supported by the Korean Science and Engineering Foundation (KOSEF). AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract Polypyrrole (PPy)/poly(methyl methacrylate) (PMMA) core/shell nanospheres with diameters of several tens of nanometers have been synthesized by two-step microemulsion polymerization, and highly transparent conductive thin films have been fabricated using the nanospheres as a filler in a PMMA matrix. The PPy/PMMA core/shell nanoparticles and their composite films have been extensively characterized using transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), Fourier-transform infrared (FT-IR) and UV-vis spectroscopies, and electrical-conductivity measurements. The fabricated polymer films containing the PPy/PMMA core/shell nanofillers show a much better transparent conductive performance than that of uncoated PPy nanoparticles with similar dimensions or bulk PPy particles with diameters of several hundreds of nanometers. The PMMA shell promotes compatibility of the conductive fillers with the PMMA matrix and enhances dispersion of the PPy/PMMA core/shell nanofillers. In addition, the nanometer-thick PMMA shell has a lower glass-transition temperature (Tg), and can be effectively annealed to form a conductive-filler network with a high electrical conductivity at a relatively low filler content. REFERENCES 1a J. Cui, A. Wang, N. L. Edleman, J. Ni, P. Lee, N. R. Armstrong, T. J. Marks, Adv. Mater. 2001, 13, 1476. 1b M. Mas-Torrent, E. Laukhina, C. Rovira, J. Veciana, V. Tkacheva, L. Zorina, S. Khasanov, Adv. Funct. Mater. 2001, 11, 299. 1c M. Miyakawa, K. Hayashi, M. Hirano, Y. Toda, T. Kamiya, H. Hosono, Adv. Mater. 2003, 15, 1100. 1d H. 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