| 摘要 |
PROBLEM TO BE SOLVED: To provide a production method of a polyimide precursor, by which a polyimide precursor can be easily and inexpensively synthesized in a one-pot process, the precursor giving a polyimide having little residue of impurities after imidization although the polyimide has a skeleton showing low linear thermal expansion or a high glass transition temperature. SOLUTION: The production method of a polyimide precursor comprises polymerization of one or more kinds of acid dianhydrides and one or more kinds of diamines, wherein the polymerization is carried out in a solution containing a vinyl ether compound. COPYRIGHT: (C)2010,JPO&INPIT |
