POLYIMIDE, POLYAMIDE IMIDE, AND FILM COMPRISING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide polyimide and polyamide imide, having low water-absorbing property, thermal expansion coefficient and double refractive index and high glass transition temperature. SOLUTION: The polyimide or polyamide imide has a specific structure having a fluorine element as a substituent. COPYRIGHT: (C)2008,JPO&INPIT