The present invention relates to a novel acid dianhydride, a method for preparing the same, and a polyimide prepared therefrom. More specifically, the acid dianhydride according to the present invention is useful as a colorless transparent polyimide unit exhibiting excellent thermal stability and a low dielectric ratio, and the polyimide of the present invention has excellent solubility to an organic solvent compared with the conventional polyimide.
本发明涉及一种新型酸二酐、其制备方法以及由其制备的聚
酰亚胺。更具体地说,本发明的酸二酐可用作无色透明聚
酰亚胺单元,具有优异的热稳定性和低介电常数,而本发明的聚
酰亚胺与传统聚
酰亚胺相比,具有优异的有机溶剂溶解性。