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Synthesis and Characterization of a Conductive Polyaniline/Clay Hybrid System

Bangwei Xi

Yingchuan Qin

Department of Chemistry, State University of New York at Albany, Albany, NY 12222, USA

Miriam Rafailovich

Department of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794, USA

Nan-Loh Yang

Xingzhong Yan

Department of Chemistry, City University of New York at Staten Island, 2800 Victory Blvd., Staten Island, NY 10314, USA

This paper presents the synthesis and characterization of polyaniline/montmorillonite hybrid polymer. Montmorillonite is a natural clay mineral. By an intercalative polymerization reaction the hybrid is synthesized. In our study, electron paramagnetic resonance (EPR) spectra were examined together with controls (PANI and clay) with the EPR signals from all the PANI/clay samples showing very high spin density (10¹⁹ spins/g polymer). PANI/clay samples show g-values higher than that of pure PANI control. Dc conductivity was measured by a four-point probe method and it was found not to be a linear function of PANI content, but the values are consistent with a percolation threshold.

High Performance Polymers, Vol. 12, No. 4, 543-549 (2000)
DOI: 10.1088/0954-0083/12/4/309


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