NOVEL DIAMINE COMPOUNDS, POLYAMIC ACIDS COMPRISING SAID DIAMINE COMPOUNDS, POLYIMIDS DERIVED FROM SAID POLYAMIC ACIDS AND SYNTHETIC METHOD OF SAID DIAMINE COMPOUNDS

摘要

The present invention is derived from the polyamic acid, the polyamic acid including a novel diamine compound, the diamine compound polyimides, and relates to a method for producing the diamine compound, and more particularly, relates to relates to a polyimide and the method for producing a diamine compound of formula (I) derived from the diamine compound, the diamine compound, including polyamic acid, the polyamic acid, preparing a polyamic acid using a diamine of the novel structure in the present invention, and it is a polyimide resin obtained by thermal cyclization excellent heat resistance (glass transition temperature, 250 or more) while maintaining excellent permeability to form a transparent polyimide film at 400nm by the electrode film of the liquid crystal display field, the transparent protective film, a touch panel, a hard coating film, a transparent hard coating film on the flexible substrate, a transparent film material, such as transparency and heat resistance, high transparency at the same time requiring a heat-resistant film or a transparent film material for manufacturing various electronic devices in the field It is possible to apply.