Polyaniline/polyvinyl alcohol blends: Effect of sulfonic acid dopants on microstructural, optical, thermal and electrical properties

In the present study, graphene oxide (GO)-reinforced poly (4-styrenesulfonic acid) (PSSA)/polyvinyl alcohol (PVA) blend composite films were prepared using colloidal blending technique at various concentrations of GO (0–3[Formula: see text]wt.%). The morphological investigations of the prepared composites were carried out using polarized optical microscopy and scanning electron microscopy. The electrical properties of composites were evaluated using an impedance analyzer in the frequency range 50[Formula: see text]Hz to 20[Formula: see text]MHz and temperature in the range 40–150[Formula: see text]C. Morphological studies infer that GO was homogeneously dispersed in the PSSA/PVA blend matrix. Investigations of electrical property indicate that the incorporation of GO into PSSA/PVA blend matrix resulted in the enhancement of the impedance ([Formula: see text] and the quality factor ([Formula: see text]-factor) values. A maximum impedance of about 4.32[Formula: see text][Formula: see text][Formula: see text]10[Formula: see text] was observed at 50[Formula: see text]Hz and 90[Formula: see text]C for PSSA/PVA/GO composites with 3[Formula: see text]wt.% GO loading. The [Formula: see text]-factor also increased from 8.37 for PSSA/PVA blend to 59.8 for PSSA/PVA/GO composites with 3[Formula: see text]wt.% GO loading. These results indicate that PSSA/PVA/GO composites can be used for high-[Formula: see text] capacitor applications.

Download Full-text

Structural, thermal and electrical properties of polyvinyl alcohol/poly(vinyl pyrrolidone)–sodium nitrate solid polymer blend electrolyte

Ionics ◽

10.1007/s11581-017-2169-8 ◽

2017 ◽

Vol 24 (1) ◽

pp. 139-151 ◽

Cited By ~ 12

Author(s):

Vanitha Duraikkan ◽

Asath Bahadur Sultan ◽

Nallamuthu Nallaperumal ◽

Athimoolam Shunmuganarayanan

Keyword(s):

Electrical Properties ◽

Polyvinyl Alcohol ◽

Polymer Blend ◽

Sodium Nitrate ◽

Vinyl Pyrrolidone ◽

Solid Polymer ◽

Thermal And Electrical Properties ◽

Poly Vinyl Pyrrolidone ◽

Polymer Blend Electrolyte

Download Full-text

Influence on loading terbium manganate on optical, thermal and electrical properties of polyvinyl alcohol nanocomposite films

Journal of Materials Science Materials in Electronics ◽

10.1007/s10854-019-00773-8 ◽

2019 ◽

Vol 30 (5) ◽

pp. 4792-4806 ◽

Cited By ~ 4

Author(s):

Monalisa Halder ◽

Ajit Kumar Meikap

Keyword(s):

Electrical Properties ◽

Polyvinyl Alcohol ◽

Nanocomposite Films ◽

Thermal And Electrical Properties

Download Full-text

Structural, Thermal and Electrical Properties of Doped Poly(3,4 ethylenedioxythiophene)

Chemistry & Chemical Technology ◽

10.23939/chcht10.04.395 ◽

2016 ◽

Vol 10 (4) ◽

pp. 395-400 ◽

Cited By ~ 1

Author(s):

Deepali Kelkar ◽

◽

Ashish Chourasia ◽

◽

Keyword(s):

Crystal Structure ◽

Electrical Properties ◽

Xrd Analysis ◽

Structure Modification ◽

Camphorsulfonic Acid ◽

Thermal And Electrical Properties ◽

Ft Ir

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.

Download Full-text