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4,4'-(Hexafluoroisopropylidene) diphthalic anhydride is involved in the synthesis of polyamides derived from terphenylenes, which is used for gas separation.
Raaijmakers, M. J. T.; Kappert, E. J.; Nijmeijer, A.; Benes, N. E. Thermal Imidization Kinetics of Ultrathin Films of Hybrid Poly(POSS-imide)s. Macromolecules 2015, 48 (9), 3031-3039.
Tapaswi, P. K.; Choi, M.; Jeong, K.; Ando, S.; Ha, C. Transparent Aromatic Polyimides Derived from Thiophenyl-Substituted Benzidines with High Refractive Index and Small Birefringence. Macromolecules 2015, 48 (11), 3462-3474.
Gefahrenhinweise (EU): H315-H319-H335
Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.