Synthesis of conductive nanocomposites based on polyaniline/poly(styrene-alt-maleic anhydride)/polystyrene

Abstract

Conducting polyaniline (PANI) nano particles doped with HCl was synthesized by a sonochemical method. Polyaniline/poly(styrene-alt-maleic acid)/polystyrene composites with different polyaniline content were developed by solution-dispersion blending method. The influence of poly(styrene-alt-maleic acid) concentration in composite structure was also investigated. The composite dispersed solution in tetrahydrofuran (THF) was cast to fabricate conductive films with evaporation of the solvent. With only a mixing procedure and without any dispersant added, the PANI nanoparticles were well dispersed in the matrix polymer as indicated by scanning electron microscopy (SEM) images. The conductivity of obtained composites was measured with four probe technique. All of obtained composites have conductivity and between them, the maximum electrical conductivity was 2.4 S/cm. The obtained composites were characterized by FT-IR and UV-Vis spectroscopy.

Synthesis and characterization of conductive nanoblends based on poly(aniline‐co‐3‐aminobenzoic acid) in the presence of poly(styrene‐alt‐maleic acid)

“…The peaks at approximately 1239 and 1303 cm À1 should have been due to the aromatic amine nitrogen (CAN stretching vibrations) for doped PANI associated with the oxidation or protonation states. 19 The peak at 1637 cm À1 were attributed to the carbonyl groups of PSMAC in the nanocomposite structure; the peak was shifted considerably with respect to the expected free carbonyl group absorption around 1700 cm À1 because of interactions with PANI macromolecules via intermolecular H bonding. 20 It is very important to study the crystal structure of conductive polymers because a highly ordered chain structure of a conductive polymer will endow a high electrical conductivity.…”

“…The preparation of conducting nanocomposites based on nanoparticles of PANABA-HCl was investigated in this study by a dispersion mixing method followed by the evaporation of the solvent. 19 Figure 4 shows a typical FTIR spectrum of the PANABA/ PSMAC/PS nanocomposite. The FTIR spectrum of the nanocomposites showed the characteristic absorption peaks of PANABA at 1560 and 1451 cm À1 ; these were assigned to the nonsymmetric benzene ring stretching mode (ring stretching in the quinoid unit and ring stretching in the benzenoid unit, respectively).…”

Novel conducting nanocomposite based on polypyrrole and modified poly(styrene‐alt‐maleic anhydride) via emulsion polymerization: Synthesis, Characterization, Antioxidant, and heavy metal sorbent activity

“…PSMA was synthesized through the thermally initiated free‐radical polymerization of styrene (St) and maleic anhydride (MA) with benzoyl peroxide (BPO) as an initiator, according to our literature method . Also, the modified PSMA copolymer was successfully prepared by chemical graft reaction of 4ABSA on PSMA as described in our previous work .…”

“…In our recently reported works, biocompatible poly(styrene‐ alt ‐maleic acid) (PSMAC) and modified poly(styrene‐ alt ‐maleic anhydride) (PSMA) copolymers have been introduced as external dopant, drug carriers, and excellent sorbent for removal of heavy metal ions . Our interest for the use of this copolymer is due to the fact that PSMA is an inexpensive commercially available copolymer having reactive groups in the main structure for further functionalization .…”