Please use this identifier to cite or link to this item:
|Title:||Synthesis of polyimides containing triphenylamine-substituted triazole moieties for polymer memory applications|
high performance polymers
|Source:||Wang, K.-L., Liu, Y.-L., Shih, I.-H., Neoh, K.-G., Kang, E.-T. (2010-12-15). Synthesis of polyimides containing triphenylamine-substituted triazole moieties for polymer memory applications. Journal of Polymer Science, Part A: Polymer Chemistry 48 (24) : 5790-5800. ScholarBank@NUS Repository. https://doi.org/10.1002/pola.24387|
|Abstract:||A series of thermally stable aromatic polyimides containing triphenylamine-substituted triazole moieties (AZTA-PI)s were prepared and characterized. The glass transition temperatures (Tg) of the polyimides were found to be in the range of 262-314 °C. The polyimides obtained by chemical imidization had inherent viscosities of 0.25-0.44 dL g -1 in N-methyl-2-pyrrolidinone. The number average molecular weights (Mn) and weight average molecular weights (Mw) were 1.9-3.2 × 104 and 3.2-5.6 × 104, respectively, and the polydispersity indices (PDI = Mw/Mn) were in the range of 1.70-1.78. A resistive switching device was constructed from the 4,4'-hexafluoroisopropylidenediphthalic dianhydride-based soluble polyimide (AZTA-PIa) in a sandwich structure of indium-tin oxide/polymer/Al. The as-fabricated device can be switched from the initial low-conductivity (OFF) state to the high-conductivity (ON) state at a switching threshold voltage of 2.5 V under either positive or negative electrical sweep, with an ON/OFF state current ratio in the order of 105 at -1 V. The device is able to remain in the ON state even after turning off the power or under a reverse bias. The nonvolatile and nonrewritable natures of the ON state indicate that the device is a write-once read-many times (WORM) memory. © 2010 Wiley Periodicals, Inc.|
|Source Title:||Journal of Polymer Science, Part A: Polymer Chemistry|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Apr 3, 2018
WEB OF SCIENCETM
checked on Apr 3, 2018
checked on Mar 11, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.