Figures & data
Scheme 1 Synthesis of diamine monomer 4.
Scheme 2 Synthesis of PAI6 and schematic of the preparation process of MWCNT/PAI composites.
Figure 1 Presentation possible interactions of hydrogen bonding between the MWCNT–(COOH)n and the PAI chains.
Figure 2 1H NMR (400 MHz) spectrum of PAI6 in DMSO-d6 at RT.
Figure 3 XRD patterns for (a) neat PAI, (b–d) MWCNT/PAI composites containing 5, 10, and 15 wt.% MWCNTs, and (e) MWCNT–COOH.
Figure 4 TGA curves of the composites with different MWCNT loading under flowing nitrogen.
Figure 5 Fracture surfaces of the produced materials: (a) pristine PAI and composites containing (b) 5 wt.%, (c) 10 wt.%, and (d) 15 wt.% MWCNTs.
Figure 6 TEM micrographs of MWCNTs/PAI composites containing 10 wt.% of MWCNT at different magnifications.
Figure 7 Stress–strain curves of composites containing 0–15 wt.% of MWCNTs.
