Syntheses and Characterizations of Colorless and Transparent Poly(amide imide) Copolymer

Effect of organoclay on the physical properties of colorless and transparent copoly(amide imide) nanocomposites

“…TFAB was synthesized directly in the laboratory. 31 All other reagents used in the synthesis procedures were purchased from TCI and Aldrich Chemical Co. (Yongin, Korea). N , N ′-Dimethylacetamide (DMAc) was purified, moisture in the solvent was removed using a 4 Å molecular sieve, and general reagents were used without further purification.…”

Recent Trends on Transparent Colorless Polyimides with Balanced Thermal and Optical Properties: Design and Synthesis

“…This approach was also very effective to restrain the film yellowness . Colorless, flexible, and tough PAI film was obtained by copolymerizing N , N′ ‐[2,2 ′ ‐bis(trifluoromethyl)‐4,4 ′ ‐biphenyleneibis(4‐aminobenzamide) (TFAB) with 6FDA, and 4,4 ′ ‐biphthalic anhydride (BPA) from PAA through solution‐casting using chemical and thermal imidization methods . Cross‐linked, colorless PI films were synthesized by copolymerizing 6FDA and bis[4‐(3‐aminophenoxy) phenyl] sulfone (BAPS) with various ratios of the reactive monomer CBDA.…”

Colorless and transparent poly(amide imide) nanocomposites containing organically modified hectorite

“…If a PAI nanocomposite that can improve the high heat resistance and optical properties of PAI is developed using a small amount of nano filler, it can be widely used in various electronic materials including the flexible display field. 37,38…”

“…If a PAI nanocomposite that can improve the high heat resistance and optical properties of PAI is developed using a small amount of nano ller, it can be widely used in various electronic materials including the exible display eld. 37,38 When using monomers frequently used for CPI, the poor thermal properties of CPI can be slightly improved; however, improving the original low CPI thermal properties is limited. Therefore, synthesizing special monomers with better thermomechanical properties while maintaining the existing optical transparency is essential.…”