Diamine compound, method of preparing the same, and composition containing the same
View Patent ↗The present invention relates to a diamine compound, a method of preparing the same, and a composition containing the same. The diamine compound of the present invention may be very usefully used as a monomer used to produce a polyimide film having excellent heat resistance and improved transparency and coefficient of thermal expansion.
1. A diamine compound represented by the following Chemical Formula 2,
[Chemical Formula 2]
wherein in Chemical Formula 2,
A is O or S;
R11 and R12 are each independently halogen, C1-C10 alkyl, halo C1-C10 alkyl, C1-C10 alkoxy, or C6-C12 aryl; and
n and m are each independently an integer of 0 to 2.
2. The diamine compound of claim 1 , wherein
in Chemical Formula 2,
A is O;
R 11 and R 12 are each independently halogen, C1-C10 alkyl, or halo C1-C10 alkyl; and
n and m are each independently an integer of 0 or 1.
3. The diamine compound of claim 2 , wherein
in Chemical Formula 2,
A is O;
R 11 and R 12 are each independently halogen, C1-C5 alkyl, or halo C1-C5 alkyl; and
n and m are each independently an integer of 0 or 1.
4. The diamine compound of claim 1 , wherein the diamine compound is selected from the following compounds,
5. A composition comprising the diamine compound of claim 1 .
6. The composition of claim 5 , wherein the diamine compound is contained in an amount of 1 to 30 wt % with respect to a total weight of the composition.