Polycyclic dianhydride and acid anhydride compounds having sulfonyl group, and polyimide-based resin and film using the same
AssigneeKorea Advanced Institute of Science and Technology
InventorsSangYoul Kim, Tae Joon Byeon, Da-sol Park
Life of this patent
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Abstract
Provided are polycyclic dianhydride and acid anhydride compounds having a sulfonyl group, a method for preparing dianhydride and acid anhydride compounds, and polyimide-based resin and film having excellent heat resistance, flexibility, and transparency, including a repeating unit of the dianhydride and acid anhydride compounds.
Claims16
A polyimide-based resin comprising a repeating unit represented by the following Chemical Formula 3 or 4:
- wherein Ar1 is independently of each other
- and
- L is a single bond, —O—, —S—, —SO2—, (C1-C7)alkylene, (C6-C12) arylene, or a combination thereof, and the arylene and the alkylene of L may be further substituted by one or more selected from (C1-C7)alkyl and halo(C1-C7)alkyl;
- R1, R2, and R3 are independently of one another (C1-C7)alkyl, (C1-C7)alkoxy, or halo(C1-C7)alkyl;
- a, b, and c are independently of one another an integer of 0 to 2.
A method for preparing a polyimide-based resin, the method comprising:
- reacting a dianhydride compound represented by the following Chemical Formula 1 and an aromatic diamine represented by the following Chemical Formula 21;
- sequentially reacting an aromatic acyl chloride represented by the following Chemical Formula 24 and an aromatic diamine represented by the following Chemical Formula 22;
- and performing imidization to prepare a polyimide-based resin including a repeating unit represented by the following Chemical Formula 6:
- wherein Ar1 and Ar2 are independently of each other
- L is a single bond, —O—, —S—, —SO2—, (C1-C7)alkylene, (C6-C12) arylene, or a combination thereof, and the arylene and the alkylene of L may be further substituted by one or more selected from (C1-C7)alkyl and halo(C1-C7)alkyl;
- R1, R2, and R3 are independently of one another (C1-C7)alkyl, (C1-C7)alkoxy, or halo(C1-C7)alkyl;
- and a, b, and c are independently of one another an integer of 0 to 2, and
- y:z is 100:0 to 10:90.
A polycyclic acid anhydride compound having a sulfonyl group represented by the following Chemical Formula 2:
Dependencies are inferred from the claim text.