Localized polarons in in situ synthesized polyaniline nanocomposite improve the morphology and the thermal and electrical conductivity

RSC Advances ◽  
2016 ◽  
Vol 6 (116) ◽  
pp. 115074-115084 ◽  
Author(s):  
M. Niranjana ◽  
L. Yesappa ◽  
S. P. Ashokkumar ◽  
H. Vijeth ◽  
S. Raghu ◽  
...  

This paper reports the localized polarons improves the morphology, thermal and electrical conductivity of dodecyl benzene sulfonic acid (DBSA) surfactant based polyaniline (PANI) – cobalt oxide (Co3O4) nano have synthesized by using in situ chemical reaction method.

2005 ◽  
Vol 2005.3 (0) ◽  
pp. 285-286
Author(s):  
Takatoshi ITO ◽  
Norihisa KAWAMURA ◽  
Kotaro SEKINE ◽  
Kazuo HAYASHI

2012 ◽  
Vol 616-618 ◽  
pp. 1675-1679
Author(s):  
Lei Zhao ◽  
Xing Xiang Zhang ◽  
Ning Wang

One-dimensional nanostructured polypyrrole (PPy) nanofibers were electrospun using a solution of PPy/polyvinyl alcohol (PVA); and PVA was used as the carrier in order to improve processability of PPy. In order to improve the performance of nanofibers, PPy were chemically synthesized by using different dopants, such as toluene sulfonate (TSNa), dodecyl-benzene sulfonic acid sodium salt (DBSNa), dodecyl sulfonic acid sodium salt (DSNa) and di-(2-ethylhexyl) sulfosuccinate sodium salt (DEHS). The morphology, structure and electrical conductivity of the fabricated nanofibers was investigated using SEM, FTIR and four-probe method, respectively. The results show that the diameters of doped PPy/PVA nanofibers are in the range of 50-190 nm. The electrical conductivity of the obtained doped PPy/PVA nanofibers was about 161-222 S/cm. DEHS doped PPy can not only make the obtained PPy be soluble in some organic solvents, but also improve the electrical conductivity of nanofibers when it is compared with that of TSNa, DSNa, DBSNa as dopants.


2010 ◽  
Vol 44-47 ◽  
pp. 2191-2194 ◽  
Author(s):  
Wang Xi Zhang

In this study a solution-blend method is adopted to prepare conductive polyvinyl alcohol (PVA) and polyaniline doped with dodecyl benzene sulfonic acid (PVA/PANI-DBSA) blend films. Emeraldine base (EB)-type polyaniline (PANI) is dissolved in N-methyl-2-pyrrolidinone (NMP) and then blended with PVA/dodecyl benzene sulfonic acid (DBSA) solution by various amounts. The morphological structures and characterized of the films were observed via scanning electronic microscopy (SEM), thermogravimetric analysis (TGA) and X-ray powder diffraction (XRD). Electrical properties of the blends were characterized by means of electrical conductivity measurements. It is found that the electrical conductivity and the thermal degradation onset temperature of the PVA/PANI-DBSA blend film are increased as the amount of PANI-DBSA is increased.


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