Preparation and properties of surface-conductive polyimide films via in situ codeposition of metal salts

Synthesis and Characterization of Iron Oxide Nanoparticles Reinforced Polyester/Nanocomposites

“…The existing challenges in the composite fabrication are to obtain uniform filler dispersion and to introduce strong chemical bonding between the nanoparticles and the polymer matrix, which are necessary to provide a high tensile strength due to local stress within the nanocomposite. The interfacial interactions between fillers and polymer matrix play a crucial role in determining the quality and properties of the nanocomposites (Rancourt and Taylor, 2008;Sawada et al, 2008;Chiang, et al, 2003). The poor bonding linkage between the fillers and the polymer matrix such as the composites made by simple mixing (Hsu, et al, 2003;Liu, et al, 1999;Park, et al, 2003;Sorensen, 2001;Zhang, et al, 1998) will introduce artificial defects, which consequently result in a adverse effect on the mechanical properties of the nanocomposites.…”

Mechanisms of Thermal Stability Enhancement in Polymer Nanocomposites

“…In contrast, a decrease in thermal stability, which is frequently reported for hybrid fi lms, can most likely be attributed to metal -catalyzed oxidative decomposition pathways in the nanocomposites [79,80] . Recently, several studies have suggested that gold nanoparticles promote the thermal decomposition of the polymer due to its catalytic ability [81 -83] .…”

Optical properties of polyimides films treated by nanosecond pulsed electrical discharges in water

“…[1][2][3][4][5] The ability of the polymer to maintain its integrity yet incorporate new and interesting chemical and physical properties when blended with other materials makes it also suitable for a range of other applications. Although PIs have been widely used in microelectronics and aerospace industries, their apparent color change from yellow to brown has limited their application in optical communication and photonic devices.…”

“…6) However, the insolubility of conventional PIs in organic solvents makes it difficult to distinguish the effects of intra-and intermolecular interactions. 5,8) Fully aromatic polyimides are known to exhibit fluorescence within the visible region, but the quantum yield of the fluorescence observed is relatively low owing to the strong CT nature of the polyimides and few studies were dedicated to applications of aromatic polyimides for electroluminescent devices. [10][11][12] On the other hand, fluorinated PIs have attracted much attention owing to the decrease in the degree of CT interaction caused by CF 3 -substituted diamines.…”