Novel Aromatic Poly(Amine-Imide)s Containing a Pendent Fluorene Group

Aromatic polyimides are well accepted as advanced materials for a thin-film application in microelectronic devices and liquid crystal displays due to their outstanding mechanical,chemical, thermal, and physical properties [1,2]. However, the technological applications of most polyimides are limited byprocessing difficulties because of high melting or glass transition temperatures (Tg’s) and limited solubility in most organic solvents. To overcome such a difficulty, polymerstructuremodification becomes necessary. One of the common approaches for increasing solubility andprocessability of polyimides without sacrificing high thermal stability is the introduction of bulky, packing-disruptive groups into the polymer backbone [3].