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Mater Sci Nanotechnol 2017 | Volume 1 Issue 2

allied

academies

Nanomaterials and Nanochemistry

November 29-30, 2017 | Atlanta, USA

International Conference on

Conductive Ppy-DS/Fe-MMT layered nanocomposites

H Enomoto

Osaka Electro-Communication University, Japan

onductive polypyrrole/montmorillonite (Ppy/MMT)

nanocomposites were synthesized by the

in-situ

polymerization of Ppy in the gallery of MMT layers. The

constrained environment of the interlayer gallery of clay

host is expected to serve as a template within which a

guest molecule is assembled, and to realize a high degree

of polymer ordering. Fe

ions were intercalated into MMT

gallery prior to the

in-situ

polymerization of Ppy. Sodium

dodecyl sulfate (DS:Na) was adopted as a dopant of the

conductive Ppy polymer. XRD patterns showed that all

samples contain an organic polymer between all individual

MMT sheets. Electrical conductivities are increasing with

an increase of the basal-plane distance of nanocomposites,

which indicates that the arrangement of Ppy polymer

changes in the MMT gallery. The dc resistivity of Ppy-DS/

Fe-MMT nanocomposites showed semiconductor-like

temperature dependence. Through the variable range

hopping (VRH) analysis, two-dimensional conduction is

found to occur in Ppy-DS/Fe-MMT layered nanocomposites

at lower temperature, although the pristine Ppy-DS polymer

shows three-dimensional conduction. This is caused by two

dimensional alignment of Ppy inMMT sheets, which suggests

that the interlayer gallery of MMT serves as a template of

Ppy arrangement.

Speaker Biography

H Enomoto has completed his Ph.D from Waseda University, Japan and Professor of

Osaka Electro-Communication University (OECU), Japan. He was a Visiting Scientist of

Oregon State University from 2000 to 2001. He has published more than 50 papers. He

is a project leader of the Fundamental Electronics Research Institute of OECU.