caa a22 4500 445828420 CHVBK 20180317145306.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s10854-010-0242-4 doi (NATIONALLICENCE)springer-10.1007/s10854-010-0242-4 Studies on Ag/Polypyrrole composite deposited on the surface of styrene-methyl acrylate copolymer microparticles and their electrical and electrochemical properties [Elektronische Daten] [Lakhya Borthakur, Shyamalima Sharma, Swapan Dolui] The colloidal dispersion of silver nano particles with different concentration (0.5, 1.0 and 1.5%) were synthesized by chemical reduction method using citrate as reducing agent. Colloidal dispersion of Poly (Styrene-co-methylacrylate) (SMA) was synthesized by mini emulsion polymerization technique. The SMA micro particles were used as template for the polymerization of pyrrole in presence of dispersion of silver nano particles by oxidative coupling method. The Ag nano particles and the final core-shell composite particles were characterized by UV-visible, FTIR, SEM, EDX and TEM analysis. The thermal analysis revealed that the SMA-PPy-Ag core-shell particles possesses better thermal stability in comparision with bare PPy-Ag nano composite. The dc conductivity and the electro chemical behaviour of the particles were studied by using a standard four-probe method. The dependence of electrical conductivity of the composites on the concentration of silver in the polypyrrole shell and the methyl acrylate content in SMA copolymer were also investigated The core-shell particles show reversible electrochemical response as revealed by the cyclic voltammetry study. Springer Science+Business Media, LLC, 2010 Borthakur Lakhya Department of Chemistry, Nowgong College, Nagaon, Assam, India aut Sharma Shyamalima Department of Physics, Tezpur University, Napaam, Assam, India aut Dolui Swapan Department of Chemical Sciences, Tezpur University, Napaam, Assam, India aut Journal of Materials Science: Materials in Electronics Springer US; http://www.springer-ny.com 22/8(2011-08-01), 949-958 0957-4522 22:8<949 2011 22 10854 https://doi.org/10.1007/s10854-010-0242-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10854-010-0242-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Borthakur Lakhya Department of Chemistry, Nowgong College, Nagaon, Assam, India aut NATIONALLICENCE 700 1- Sharma Shyamalima Department of Physics, Tezpur University, Napaam, Assam, India aut NATIONALLICENCE 700 1- Dolui Swapan Department of Chemical Sciences, Tezpur University, Napaam, Assam, India aut NATIONALLICENCE 773 0- Journal of Materials Science: Materials in Electronics Springer US; http://www.springer-ny.com 22/8(2011-08-01), 949-958 0957-4522 22:8<949 2011 22 10854 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer