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

摘要

PURPOSE: A diamine compound is provided to be applied to a raw material for manufacturing a transparent film or a transparent heat resistant film which simultaneously requires transparency and heat resistance. CONSTITUTION: A diamine compound is represented by chemical formula 1. In chemical formula 1, A' is CO2 or CO-NH, each of R1, R2, R3, R4, and R5 is H, F, I, Br, Cl, CH3, CF3, OH, or Ph. Polyamic acid represented by chemical formula 5 is manufactured by reaction of a diamine compound represented by chemical formula 6 and dianhydride represented by chemical formula 7. In chemical formula 6, X is a C3-30 aromatic or aliphatic divalent organic group. The diamine compound represented by chemical formula 6 includes the diamine compound represented by chemical formula 1. Y is a quadrivalent organic group including a C4-30 aromatic ring or aliphatic ring, R6 is H, and n is an integer from 5-1,000.