Abstract
A soluble polyaniline (PANI) salt with moderate conductivity was synthesized by a novel emulsion polymerization process. The conductivity of the processed PANI films can be substantially increased by treating the polymer films with surfactants or with low molecular weight alcohols. Transmission electron microscopy (TEM) images of thin polymer films revealed the existence of small islands of conducting PANI embedded in a non-conducting, dopant matrix. The conductivity of the PANI films is affected by the spatial distribution and the connectivity of these small islands. The conductivity enhancement observed upon treatment with surfactants is due to self-assembly of conducting PANI molecules into an interconnected network morphology. In the case of alcohol treatment the film conductivity is enhanced due to extraction of excess dopant phase and the subsequent densification of PANI islands to form highly conducting pathways.
| Original language | English (US) |
|---|---|
| Title of host publication | Materials Research Society Symposium - Proceedings |
| Editors | J.R. Reynolds, A.K.Y. Jen, M.F. Rubner, L.Y. Chiang, L.R. Dalton |
| Publisher | MRS |
| Pages | 623-628 |
| Number of pages | 6 |
| Volume | 488 |
| State | Published - 1997 |
| Externally published | Yes |
| Event | Proceedings of the 1997 MRS Fall Meeting - Boston, MA, USA Duration: Dec 1 1997 → Dec 5 1997 |
Other
| Other | Proceedings of the 1997 MRS Fall Meeting |
|---|---|
| City | Boston, MA, USA |
| Period | 12/1/97 → 12/5/97 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
Cite this
Nanostructure of electrically conducting polyaniline prepared by a novel emulsion polymerization process. / Liu, Jingyue; Kinlen, P. J.; Graham, C. R.
Materials Research Society Symposium - Proceedings. ed. / J.R. Reynolds; A.K.Y. Jen; M.F. Rubner; L.Y. Chiang; L.R. Dalton. Vol. 488 MRS, 1997. p. 623-628.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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TY - GEN
T1 - Nanostructure of electrically conducting polyaniline prepared by a novel emulsion polymerization process
AU - Liu, Jingyue
AU - Kinlen, P. J.
AU - Graham, C. R.
PY - 1997
Y1 - 1997
N2 - A soluble polyaniline (PANI) salt with moderate conductivity was synthesized by a novel emulsion polymerization process. The conductivity of the processed PANI films can be substantially increased by treating the polymer films with surfactants or with low molecular weight alcohols. Transmission electron microscopy (TEM) images of thin polymer films revealed the existence of small islands of conducting PANI embedded in a non-conducting, dopant matrix. The conductivity of the PANI films is affected by the spatial distribution and the connectivity of these small islands. The conductivity enhancement observed upon treatment with surfactants is due to self-assembly of conducting PANI molecules into an interconnected network morphology. In the case of alcohol treatment the film conductivity is enhanced due to extraction of excess dopant phase and the subsequent densification of PANI islands to form highly conducting pathways.
AB - A soluble polyaniline (PANI) salt with moderate conductivity was synthesized by a novel emulsion polymerization process. The conductivity of the processed PANI films can be substantially increased by treating the polymer films with surfactants or with low molecular weight alcohols. Transmission electron microscopy (TEM) images of thin polymer films revealed the existence of small islands of conducting PANI embedded in a non-conducting, dopant matrix. The conductivity of the PANI films is affected by the spatial distribution and the connectivity of these small islands. The conductivity enhancement observed upon treatment with surfactants is due to self-assembly of conducting PANI molecules into an interconnected network morphology. In the case of alcohol treatment the film conductivity is enhanced due to extraction of excess dopant phase and the subsequent densification of PANI islands to form highly conducting pathways.
UR - http://www.scopus.com/inward/record.url?scp=0031343232&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031343232&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0031343232
VL - 488
SP - 623
EP - 628
BT - Materials Research Society Symposium - Proceedings
A2 - Reynolds, J.R.
A2 - Jen, A.K.Y.
A2 - Rubner, M.F.
A2 - Chiang, L.Y.
A2 - Dalton, L.R.
PB - MRS
ER -