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Electrically bistable switching polymeric materials have recently attracted significant attention because they have important advantages over inorganic silicon- and metal-oxide-based materials for memory device applications in that their dimensions can easily be miniaturized and their properties can easily be tailored through chemical synthesis. Moreover, they can be processed at low cost and have...
Two thermally, dimensionally stable aromatic polyimides (PIs) of triphenylamine derivatives bearing electron-accepting bis(trifluoromethyl)phenyl group and electron-donating bithiophene group were synthesized with reasonably high molecular weights. These PIs in nanoscale thin films were investigated in aspects of morphological structure and interfaces in contact with substrates and metal electrodes...
A series of soluble poly(amic acid) precursors were prepared from a new carbzole-containing monomer, 3,3′-bis[9-carbazole(ethyloxy)biphenyl]-4,4′-diamine (HAB-CBZ) by polycondensation with four different aromatic dianhydrides: pyromellitic dianhydride (PMDA), 3,3′,4,4′-biphenyltetracarboxylic dianhydride (BPDA), 3,3′,4,4′-diphenylethertetracarboxylic dianhydride (ODPA), and 3,3′,4,4′-diphenylsulfonyltetracarboxylic...
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