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O. Aksimentyeva et al.
The surface of the composite with a metal content of 5 wt% is more ordered
than the previous one. The formation of packs of macromolecules fibrils is observed,
among which is the incorporation of metal particles of almost identical spherical
shape with a diameter of 500–600 nm (see Fig. 7).
For composites with 10 and 20 wt% metal content, the tendency of change of
surface morphology from broad striped to ordered chain persists (see Fig. 8).
The maximum degree of ordering (the average crystallite size of 0.4 μm
3 ) is
achieved at 30 wt% silver in the composite (see Fig. 9). It can be seen that the polymer
chains are being arranged in the oblong packs, which contributes to their maximum
unwinding. Analyzing the appearance of the inhomogeneities of the surface, we can
assume that the formed silver particles are enclosed (encapsulated) with a polymer.
The morphology of the obtained samples is the transition between the amorphous
Fig. 7 AFM image of the surface of the PAn-Ag composite with a silver content of 5 wt%: a 3D
spatial; b 2D image (scan area 1.5 ×1.5 μm 2 )
Fig. 8 AFM 2D image of a PAn-Ag composite surface with a silver content of 10 (a) and 20 (b) %
by weight (scan area 5 × 5 μm 2 )
O. Aksimentyeva et al.
The surface of the composite with a metal content of 5 wt% is more ordered
than the previous one. The formation of packs of macromolecules fibrils is observed,
among which is the incorporation of metal particles of almost identical spherical
shape with a diameter of 500–600 nm (see Fig. 7).
For composites with 10 and 20 wt% metal content, the tendency of change of
surface morphology from broad striped to ordered chain persists (see Fig. 8).
The maximum degree of ordering (the average crystallite size of 0.4 μm
3 ) is
achieved at 30 wt% silver in the composite (see Fig. 9). It can be seen that the polymer
chains are being arranged in the oblong packs, which contributes to their maximum
unwinding. Analyzing the appearance of the inhomogeneities of the surface, we can
assume that the formed silver particles are enclosed (encapsulated) with a polymer.
The morphology of the obtained samples is the transition between the amorphous
Fig. 7 AFM image of the surface of the PAn-Ag composite with a silver content of 5 wt%: a 3D
spatial; b 2D image (scan area 1.5 ×1.5 μm 2 )
Fig. 8 AFM 2D image of a PAn-Ag composite surface with a silver content of 10 (a) and 20 (b) %
by weight (scan area 5 × 5 μm 2 )