Synergistic Regulation of Thermal-Optical Properties in Polyimides via Amide Bonds and Trifluoromethyl Groups: From Molecular Design to Flexible CNT TFTs Application

Key Points

• The aim is to explore how amide bonds and trifluoromethyl groups influence the thermal and optical properties of polyimides.
• Synthesized polyimides with varying compositions of amide bonds and trifluoromethyl groups.
• Performed thermal and optical characterization of the polyimides.
• Evaluated their application in flexible carbon nanotube thin-film transistors (CNT TFTs).
• Polyimides displayed improved thermal resistance with the incorporation of trifluoromethyl groups.
• Higher optical transparency was achieved without compromising thermal stability.
• Demonstrated viability for use in next-generation flexible display technology.