Compound and composition
A compound and composition technology, applied in the field of compounds and compositions, can solve the problems of low dichroic ratio of polarizing films and the like
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Embodiment 1
[0307]
[0308] 0.30 g of the compound represented by the formula (2A), 0.48 g of triethylamine, 0.023 g of N,N-dimethylaminopyridine, and 3.0 g of tetrahydrofuran were mixed. After cooling the obtained mixture to 0°C, 0.39 g of the compound represented by the formula (3A) was added dropwise. The resulting mixture was stirred at 25°C for 18 hours. The obtained reaction mixture was concentrated, washed with ethyl acetate and water, and filtered. The obtained solid was washed with acetonitrile and then dried to obtain 0.129 g of a compound represented by formula (1A) (hereinafter referred to as compound (IA)) as an orange solid.
[0309] Mw: 489 (LC-MS)
[0310] Maximum Absorption Wavelength (λ max2 )=441nm (chloroform solution)
Embodiment 2
[0312]
[0313] 0.30 g of the compound represented by the formula (2B), 0.41 g of triethylamine, 0.020 g of N,N-dimethylaminopyridine, and 4.5 g of tetrahydrofuran were mixed. After cooling the obtained mixture to 0° C., 0.21 g of the compound represented by the formula (3A) was added dropwise. The resulting mixture was stirred at 25°C for 18 hours. The obtained reaction mixture was concentrated, washed with ethyl acetate and water, and filtered. The obtained solid was washed with acetonitrile and then dried to obtain 0.189 g of a compound represented by the formula (1B) (hereinafter referred to as compound (IB)) as an orange solid.
[0314] Mw: 544 (LC-MS)
[0315] Maximum Absorption Wavelength (λ max2 )=430nm (chloroform solution)
[0316] [Polymerizable liquid crystal compound]
[0317] The polymerizable liquid crystal compound used is a compound represented by the following formula (4-6) [hereinafter referred to as compound (4-6)], a compound represented by the fol...
Embodiment 3
[0338] [Preparation of composition]
[0339] Composition (1) was obtained by mixing the following components and stirring at 80 degreeC for 1 hour.
[0340] Polymerizable liquid crystal compound: 75 parts of compound (4-6)
[0341] Compound (4-8) 25 parts
[0342] Compound (1): Compound (1A) 2.5 parts
[0343] Polymerization Initiator:
[0344] 6 parts of 2-dimethylamino-2-benzyl-1-(4-morpholinophenyl)butan-1-one (IRGACURE369; manufactured by Ciba Specialty Chemicals)
[0345] Leveling agent:
[0346] Polyacrylate compound (BYK-361N; manufactured by BYK-Chemie)
[0347] 1.5 servings
[0348] Solvent: 250 parts of chloroform
[0349] [Measurement of Phase Transition Temperature]
[0350] In the same manner as compound (4-6), the phase transition temperatures of the components contained in composition (1) were determined. After the temperature is raised to 140°C, the composition transforms into a nematic phase at 115°C, a smectic A phase at 105°C, and a smectic B phase ...
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