Solvent free synthesis of polyaniline–clay nanocomposites from mechanochemically intercalated anilinium fluoride

Abstract

Nanocomposites consisting of conducting polyaniline and clay minerals were successfully synthesized from mechanochemically intercalated anilinium fluoride; the nanocomposites prepared by the mechanochemical intercalation method contained much more polyaniline in the clay layers than those prepared by a conventional solution method.

Double corrosion protection mechanism of molybdate-doped polypyrrole/montmorillonite nanocomposites

“…As a result, the basal spacing of monomer-absorbed MMT changed from 1.58 to 1.42 nm. They are in the agreement with another publication [15]. …”

Layers of Inhibitor Anion – Doped Polypyrrole for Corrosion Protection of Mild Steel

“…As a result, the the basal spacing of monomer-absorbed MMT changed from 1.58 nm to 1.42 nm (2θ = 6.0°). They are in the agreement with other publications [54]. Figure 22 presents the Raman spectrum of PPy/MMT nanocomposite measured at 514 nm with 1 mW laser power.…”

Effect of the intercalated cation on the properties of poly(o-methylaniline)/maghnite clay nanocomposites

“…Huang and Kanner reported the synthesis of PANI nanofibers by phase transfer polymerization [9,10]. Furthermore, PANI was synthesized into the channels of inorganic hosts [11][12][13], generally, by absorbing the monomer in the host and then adding the oxidant. Among these, the host most commonly used for polymer nanocomposites are expandable-layered silicates, being maghnite (Magh, a natural sodium montmorillonite clay obtained from Tlemcen (Algeria)) a typical example.…”

“…Thus, the interlayer spacing can be modified, depending on the cation intercalated. Taking profit of the swelling of the montmorillonite when it is immersed in water, that produces a remarkable increase of the interlayer spacing [24], Yoshimoto et al explored the mechanochemical intercalation of different anilinium salts (chloride, fluoride and sulphate) into sodium montmorillonite layers prior to the polymerization [12,13,19]. They concluded that nanocomposites made using a solvent-free mechanochemical method, produced much more polyaniline between the montmorillonite layers than that obtained by conventional solution methods.…”

“…Composites of several conducting polymers with montmorillonite were synthesized under different conditions [12][13][14][15][16][17][18][19][20][21][22][23]. Temperini et al monitored the polymerization of aniline, intercalated into sodium-montmorillonite; they found differences between the structure of the polymer in the nanocomposite and bulk PANI [14,18].…”