Castor
Oil Based Hyperbranched Poly(ester amide)/Polyaniline
Nanofiber Nanocomposites as Antistatic Materials
- Publication date
- Publisher
Abstract
Biobased hyperbranched poly(ester
amide) (HBPEA)/polyaniline (PAni)
nanofiber nanocomposites were prepared by incorporating the as-synthesized
PAni nanofiber at varied weight percentages by an ex situ polymerization
technique. Fourier transform infrared spectroscopic analyses indicated
the interactions of the benzenoid–quinoid moieties of PAni
with HBPEA. The transition from liquidlike to solidlike behavior of
the nanocomposites with a percolation threshold at 10 wt % nanofiber
content was studied using dynamic rheology. The formation of nanofibrous
network within the HBPEA matrix as vouched for by TEM study and initial
degradation temperature (from 277 to 307 °C) was found to be
increased with the increment of nanofiber content. The evaluation
of mechanical properties such as tensile strength (7.2–12.25
MPa), elongation at break (88–70%), impact resistance (>100
cm), and scratch hardness (8.5–10 kg) together with the decrease
in the sheet resistance (from 10<sup>7</sup> to 10<sup>5</sup> Ω/sq)
forwarded the epoxy–poly(amido amine) cured nanocomposites
as prospective antistatic materials