Photosensitive resin composition, black pixel defining layer using same, and display device
A technology of photosensitive resin and composition, which is applied in the field of photosensitive resin composition, and can solve problems such as hindering the true black color of organic light emitting diodes, deteriorating the life of organic light emitting diodes, and reducing brightness
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Synthetic example 1
[0315] Synthesis example 1: Synthesis of polyamic acid-polyimide copolymer
[0316] 86.6 grams of N-methyl-2-pyrrolidone (NMP) was dissolved in 12.3 grams of 4,4' in a four-necked flask equipped with a stirrer, thermostat, nitrogen injector and condenser while nitrogen was passed through the flask. -(hexafluoroisopropylidene)diphthalic anhydride (6-FDA). When the solid was completely dissolved, 3.25 g of 3-aminophenylsulfone (3-DAS) was added thereto, and the mixture was stirred at room temperature for 2 hours. Subsequently, the temperature in the flask was increased to 90° C., 5.6 g of pyridine and 2.05 g of acetic anhydride (A 2 CO), and the resulting mixture was stirred for 3 hours. The temperature in the reactor was cooled to room temperature, 1.6 g of 2-hydroethyl methacrylate (HEMA) was added thereto, and the obtained mixture was stirred for 6 hours. Subsequently, 3.25 g of 3-aminophenylsulfone (3-DAS) was added thereto, the obtained mixture was allowed to react for 6...
Synthetic example 2
[0317] Synthesis Example 2: Synthesis of compounds represented by Chemical Formula 1-1
[0318] 78 millimoles of aluminum chloride and 33 grams of dichloroethane were placed in the reactor under a nitrogen atmosphere. 36 mmoles of the compound represented by Chemical Formula 1-1-b and 30 mmoles of the compound represented by Chemical Formula 1-1-a were put into the same reactor, and after cooling the reactor with an ice bath, 33 grams of dichloroethane. The reaction solution was stirred at 5°C for 30 minutes and put into ice water for phase separation. Next, the solvent therein is removed to obtain an acylated intermediate. 20 mmol of the acylation intermediate was put into a reactor together with 30 mmol of hydroxylamine hydrochloride and 20 g of dimethylformamide, and reacted therewith at 80° C. under a nitrogen atmosphere. After about two hours, the temperature of the reactor was changed to room temperature. When the phase separation was completed, the solvent therein w...
Synthetic example 3
[0326] Synthesis Example 3: Synthesis of compounds represented by Chemical Formula 1-2
[0327] 78 millimoles of aluminum chloride and 33 grams of dichloroethane were placed in the reactor under a nitrogen atmosphere. 36 mmoles of the compound represented by Chemical Formula 1-2-b and 30 mmoles of the compound represented by Chemical Formula 1-2-a were put into the same reactor, and after cooling the reactor with an ice bath, slowly 33 g of dichloroethane were added. After the mixture was stirred at 5°C for 30 minutes, the reaction solution was put into ice water for phase separation. Next, the solvent therein is removed to obtain an acylated intermediate. 20 mmol of the acylation intermediate, 30 mmol of hydroxylamine hydrochloride, and 20 g of dimethylformamide were put into a reactor, and reacted at 80° C. under a nitrogen atmosphere. After about two hours, the temperature in the reactor was cooled to room temperature. After phase separation and solvent removal, 28 g of...
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