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Issue 2, 2017
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Exceptionally thermostable and soluble aromatic polyimides with special characteristics: intrinsic ultralow dielectric constant, static random access memory behaviors, transparency and fluorescence

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Abstract

A series of high-performance multifunctional polyimides with exceptional thermostability and solubility (Tg as high as 494 °C and, at the same time, well soluble in common organic solvents) were successfully designed and synthesized by introducing a typical aromatic rigid trifluoromethyl-containing moiety with special non-planar and conjugated characteristics into the polymer backbone. Additionally, these polyimides show light color (one even colorlessness) and transparency, intrinsic ultralow dielectric constant (k, k ≈ 1.93), and electrical bistability characteristics (ON/OFF ratio as high as 107, working voltage as low as 1.5 V) simultaneously. The excellent thermal stability and solubility allow them to undergo the high temperature process (over 400 °C) in the preparation of photoelectric devices (like PVD or PECVD), or the highly efficient, continuous roll-to-roll process. The as-synthesized polymers are ideal potential candidates for practical applications in the fields of ultra-large-scale integration (ULSI), high-performance polymer memory devices, flexible displays, thin film PV industries, and wearable electronics.

Graphical abstract: Exceptionally thermostable and soluble aromatic polyimides with special characteristics: intrinsic ultralow dielectric constant, static random access memory behaviors, transparency and fluorescence

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Publication details

The article was received on 04 May 2016, accepted on 31 May 2016 and first published on 12 Aug 2016


Article type: Research Article
DOI: 10.1039/C6QM00027D
Citation: Mater. Chem. Front., 2017,1, 326-337
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    Exceptionally thermostable and soluble aromatic polyimides with special characteristics: intrinsic ultralow dielectric constant, static random access memory behaviors, transparency and fluorescence

    Y. Liu, Z. Zhou, L. Qu, B. Zou, Z. Chen, Y. Zhang, S. Liu, Z. Chi, X. Chen and J. Xu, Mater. Chem. Front., 2017, 1, 326
    DOI: 10.1039/C6QM00027D

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