| 摘要 |
<p>A polyimide excelling in heat resistance, chemical resistance, water repellency, dielectric characteristics, electrical characteristics, and optical characteristics and a polyamide acid useful as the raw material therefor are provided. Specifically, a polyamide acid containing a chlorine atom and a fluorine atom and comprising a repeating unit represented by the following formula (1): <CHEM> (wherein X and X' independently denote a divalent organic group; Y and Y' independently denote a chlorine, bromine, or iodine atom; p and p' denote independently denote the number of fluorine atom äF in the formula (1)ü bonded to the relevant benzene ring, representing an integer of 0 - 3; q and q' independently denote an integer of 0 - 3; and p + q total 3, and p' + q' total 3). <IMAGE></p> |
