In:
Journal of Nanoscience and Nanotechnology, American Scientific Publishers, Vol. 8, No. 4 ( 2008-04-01), p. 1700-1706
Kurzfassung:
We prepared transparent polyimide (PI) and organo-modified montmorillonite (OMMT) nanocomposite films from the solution of poly(amic acid) and various amounts (0.5–2 wt%) of OMMT in N,N-dimethylacetamide (DMAc). The Poly(amic acid) was prepared from the reaction of 4,4′-(hexafluoroisopropylidene)diphthalic
anhydride (6FDA) and 2,2′-bis (trifluoromethyl)-4,4′-diamino phenyl (TFDB). Dodecylamine (C 12 -) and dodecyltriphenylphosphonium chloride (C 12 PPh-Cl – ) were used as organic modifiers in OMMT. The PI/OMMT nanocomposite films were characterized
by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), transmission electron microscope (TEM), UV-Vis transmission spectra, thermomechanical analysis (TMA), and rheometric dynamic analysis (RDA). As the OMMT contents is increased, PI/OMMT nanocomposites generally show better properties compared to pristine PI films, although the transparency of the PI/OMMT nanocomposite films is sacrificed slightly. However, it is concluded that these nanocomposite films are good candidates for potential flexible substrates.
Materialart:
Online-Ressource
ISSN:
1533-4880
DOI:
10.1166/jnn.2008.18233
Sprache:
Englisch
Verlag:
American Scientific Publishers
Publikationsdatum:
2008
SSG:
11
