An all-aromatic liquid crystal polyetherimide based on BPDA and an aromatic aryletherdiamine (P3) was modified with SWCNTs. SWCNT concentrations as high as 4.4. vol.% could be prepared.  Figure 1. TEM imaging of LC BPDA-P3 with 2.4 vol.% SWCNT showed SWCNT's (indicated by black arrows) surrounded by amorphous polymer domains, which differs from what has been observed for other semi-crystalline polymeric matrices such as PVA and PmPv. Subsequent investigation of the nanocomposite film morphology by DSC and WAXD revealed no change in the degree of crystallinity as compared to the neat polymer. Storage modulus values at R.T. increased from 3.0 GPa to 6.0 GPa at SWCNT loadings of 4.4 vol.%. Heat treatment of the nanocomposite films above the K-N transition and subsequent quenching resulted in increased storage modulus values. The synthetic details and properties of this new family of LC nanocomposites will be discussed.

SWCNT nanocomposites based on an all-aromatic liquid crystal polyetherimide: Synthesis and characterization

245th National Meeting (2013)

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