Morphological changes in PAni/PMMA-Blends during dispersion studied by SAXS

New Insight into Organic Metal Polyaniline Morphology and Structure

“…A second indication of what may be happening, and in which direction we should look, came from some first results of a small angle x-ray diffraction (SAXS) [15]. For the first time, we detected a 3.5 nm small subunit (and confirmed the around 10-15 nm primary particle size), which we assume to represent the diameter of individual polyaniline chains within the primary particle; the chains not being straight but somehow coiled.…”

Conductive Polymer Composites and Blends

“…Gangopadhyay et al [51] prepared a PANI/PVA composite in an aqueous solution of PVA (1 g in 10 ml water), maintaining the molar ratio of aniline: APS 1:1 (at different quantities of aniline), and pH 5 1 in the presence of HCl at 10 C. Xiang and Xie [52] revealed that aniline could be graft copolymerized onto the backbone of poly (acrylamide) (PAM) in aqueous HCl solution in the presence of APS as oxidant. Lennartz et al [56] showed that PANI-TSA particles agglomerated to 50 nm aggregates in a PMMA matrix. Scanning electron micrographs (SEMs) showed that a PANI/PAM composite at low PANI loading (2%) had a little phase separation, but that a minor phase separation appeared for a somewhat higher PANI content (10%), while the phase morphology of PANI/PAM composites having even 40% PANI content showed a very intimate and uniform distribution of the two phases, without the significant phase aggregation.…”

An experimental study of the charging regime of the composite (PANI5%/PMMA)

“…In addition, the polymer matrix itself could be protected from degradation once mixed with conducting polymers [14,15]. However, even though there are numerous reports on (PANI/PMMA) [3,[16][17][18][19][20][21][22], no study on the SEE yield of this composite has been reported so far. Therefore, we undertake an investigation on the trapping and detrapping proprieties of the charge of the composite PANI/PMMA under the influence of the impact of the electron beam.…”