Effect of cesium bromide on the structural, optical, thermal and electrical properties of polyvinyl alcohol and polyethylene oxide

Poly(3,4-ethylenedioxythiophene) (PEDOT) was chemically synthesized, undoped and then re-doped using FeCl3 as well as camphorsulfonic acid (CSA). FT-IR results confirm the nature of the synthesized and doped samples. XRD analysis indicates crystal structure modification after doping and was also used to calculate crystallinity of samples. Crystallinity increases after FeCl3 doping, whereas it reduces due to CSA doping. TGA-DTA results show reduction in Tg value for FeCl3 doped sample while it increases for CSA doped samples compared to that of undoped PEDOT. Reduction in Tg indicates plasticizing effect of FeCl3 whereas increase in Tg show anti-plasticizing effect of CSA in PEDOT. Conductivity value () increases by two orders of magnitude after doping. Log vs. 1/T graph show metallic nature of undoped PEDOT above 308 K, however both doped samples show semiconducting nature from 301 to 383 K.

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Investigation of mechanical, thermal and electrical properties of hybrid composites reinforced with multi-walled carbon nanotubes and fused silica particles

Carbon letters ◽

10.1007/s42823-019-00104-1 ◽

2019 ◽

Vol 30 (4) ◽

pp. 353-365

Author(s):

Yun Oh ◽

Jeong Seok Kang ◽

Chang Soo Kang ◽

Ki Chul Kwon ◽

Gyo Woo Lee

Keyword(s):

Carbon Nanotubes ◽

Electrical Properties ◽

Hybrid Composites ◽

Silica Particles ◽

Fused Silica ◽

Multi Walled Carbon Nanotubes ◽

Thermal And Electrical Properties ◽

Walled Carbon Nanotubes

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Effect of electron irradiation on optical, thermal and electrical properties of polymer electrolyte

Journal of Radioanalytical and Nuclear Chemistry ◽

10.1007/s10967-019-06462-4 ◽

2019 ◽

Vol 322 (1) ◽

pp. 19-27 ◽

Cited By ~ 5

Author(s):

B. K. Mahantesha ◽

V. Ravindrachary ◽

R. Padmakumari ◽

R. Sahanakumari ◽

Pratheeka Tegginamata ◽

...

Keyword(s):

Electrical Properties ◽

Polymer Electrolyte ◽

Electron Irradiation ◽

Thermal And Electrical Properties

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Electrical Properties of Electrospun Nanofibers of PEO/Carbon Black Composite

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.151.67 ◽

2009 ◽

Vol 151 ◽

pp. 67-71 ◽

Cited By ~ 3

Author(s):

Wai Kit Li ◽

Y.W. Wong

Keyword(s):

Electrical Properties ◽

Carbon Black ◽

Polyethylene Oxide ◽

Electrospun Nanofibers ◽

Angular Speed ◽

Polymer Fibers ◽

Fiber Direction ◽

Fiber Morphology ◽

Polarized Ftir ◽

Specific Orientation

Electrospinning is an efficient technique for the fabrication of polymer nanofibers. The charges inside the polymer jet tend to repel each other so as to stretch and reduce the diameter of the polymer fibers. By rotating the collector at a fast angular speed, nanofibers with specific orientation can be obtained. In this study, nanofibers of Polyethylene oxide (PEO) with carbon black were prepared by electrospinning. PEO was dissolved in a mixture of water and ethanol. PEO is known as an electrolytic polymer. With the blending of carbon black powders, its electrical properties along the fiber direction were investigated. The fiber morphology and characteristics were studied by SEM and polarized FTIR.

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