Investigations of the electrical conduction mechanisms of polyaniline‐DBSA/poly(acrylonitrile‐butadiene styrene) blends

Abstract

The electrical properties of Al/PANI-DBSA/ABS/Au blend with PANI (5%) w/w have been investigated by using of current-voltage (I-V) measurements, in a temperature range of 100-313 K. The analysis of I-V characteristics in the forward direction was based on thermionic emission mechanism for applied electrical field till $3 3 10 2 V/cm. The thickness dependence of the current-voltage relationship, clearly demonstrates that the electrical current for larger fields is space charge limited current (SCLC). Temperature dependences of the ideality factor, barrier height, and series resistance have been calculated. The mobility of carriers which is temperature dependent was calculated using the trap free SCLC as 1.53 3 10 24 cm 2 V 21 s 21 at room temperature. V C 2014Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40688.

Tailoring electrical and thermal properties of polymethyl methacrylate‐carbon nanotubes composites through polyaniline and dodecyl benzene sulphonic acid impregnation

“…They are usually nonionic or ionic (cationic, anionic and zwitterionic) in nature. Surfactant is found to be useful for the electrical and mechanical property enhancement of different polymers and for the well dispersion of CNTs . DBSA is an established surfactant; it contains one long nonpolar chain and one polar head and therefore, could be useful for the homogenous dispersion of CNTs in the polymer matrix.…”

Chemical synthesis and characterization of dodecylbenzene sulfonic acid-doped polyaniline/viscose fiber

“…[5][6][7][8][9][10] Among them, polyaniline (PANI) is one of the most promising conducting polymers because of its unique properties, its ease of preparation, and excellent environmental stability. 11,12 Compared with inorganic acid, organic acids containing large alkyl groups not only have high thermal stability, but also can improve the melting and solution processability of PANI. 11,12 Compared with inorganic acid, organic acids containing large alkyl groups not only have high thermal stability, but also can improve the melting and solution processability of PANI.…”

“…11,12 Compared with inorganic acid, organic acids containing large alkyl groups not only have high thermal stability, but also can improve the melting and solution processability of PANI. [11][12][13] Moreover, template synthesis of PANI composites is an effective method to improve the processability of PANI. A stoichiometric mixture of aniline monomer (ANI) and DBSA reacts to form a ne stable dispersion of PANI in the aqueous medium.…”

“…6,7 However, the low solubility, poor mechanical properties and the fabrication difficulty limit the application of PANI. 11,12 Compared with inorganic acid, organic acids containing large alkyl groups not only have high thermal stability, but also can improve the melting and solution processability of PANI. 11 Among these functionalized organic acids, dodecylbenzene sulfonic acid (DBSA) is the most used.…”

Enhancement of polyaniline properties by different polymerization temperatures in hydrazine detection

“…In recent years, conducting polymers have gained much attention due to their versatile applications in electronic devices, light emitting diodes, sensors, actuators, corrosion protection coatings, and microwave absorption . Among the conducting polymers, polyaniline (PAni) is one of the promising semiconductors due to its ease of synthesis, high conductivity, low production cost, and good environmental stability . However, some of the known disadvantages of PAni include low molecular weight and having many defect sites when it was synthesized at room temperature.…”