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Pendant type polymer, color-conversion films including pendant type polymer, and organic el device for multicolor light emission

A polymer compound and color-changing film technology, applied in the field of side-group polymer compounds, can solve problems such as inactivation, achieve the effect of improving printing accuracy and processing capacity, and increasing fluorescence quantum yield

Inactive Publication Date: 2012-07-11
ADEKA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, if a single color-changing substance is used to form a color-changing film, a phenomenon called concentration extinction occurs in which absorbed energy repeatedly moves between the same molecules and is deactivated without accompanying luminescence

Method used

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  • Pendant type polymer, color-conversion films including pendant type polymer, and organic el device for multicolor light emission
  • Pendant type polymer, color-conversion films including pendant type polymer, and organic el device for multicolor light emission
  • Pendant type polymer, color-conversion films including pendant type polymer, and organic el device for multicolor light emission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0179] Synthesis of polymer compound (C-1)

[0180] The polymer compound (C-1) was synthesized according to the following scheme.

[0181] [chemical formula 12]

[0182]

[0183] Synthesis of compound (11)

[0184] Under an argon atmosphere, 3.0 g (3.74 mmol) of compound (8), 1.5 g (3.74 mmol) of compound (10), 0.5 g (5.24 mmol) of sodium tert-butoxide and 30 ml of toluene were fed, and 8 mg (1mol) of palladium acetate was added. %) and a solution of 20 mg of tri-tert-butylphosphine in 0.5 ml of toluene, stirred at 110° C. for 4 hours. After cooling to room temperature, a short column (toluene), methanol dispersion washing, column chromatography (toluene:n-hexane=1:1→toluene), methanol dispersion washing, and drying at 60°C for 1 hour gave 1.9 g of a yellow solid. The yellow solid was confirmed to be compound (11) by NMR.

[0185] Synthesis of polymer compound (C-1)

[0186] Under argon atmosphere, compound (11) 0.2g (1.8×10 -4 mol), polymer compound (C-17) (weight...

Embodiment 2

[0188] synthesis of polymer compound (C-2)

[0189] The polymer compound (C-2) was synthesized according to the following scheme.

[0190] [chemical formula 13]

[0191]

[0192] Synthesis of compound (19)

[0193] Under an argon atmosphere, 0.9 g (2.54×10 -2 mol) and 30 g of dimethylformamide (DMF), and stirred at 70° C. to obtain DMF solution 1. In addition, 4-iodophenol (compound (13)) 2.8g (1.27×10 -2 mol) and potassium hydroxide 0.9g (1.33×10 -2 mol) was dissolved in 30 g of DMF at 70°C to obtain DMF solution 2. DMF solution 2 was dropped into DMF solution 1 over 30 minutes, and stirred for 2 hours. After cooling to room temperature, the reaction solution was poured into 500ml of water, stirred for 1 hour, separated from water by 150ml of chloroform, washed with water, dried with sodium sulfate, desolventized, crystallized from methanol, and dried at 30°C for 1 hour to obtain a white solid 3.1 g. The white solid was confirmed to be compound (19) by NMR.

[0...

Embodiment 3

[0198] Synthesis of polymer compound (C-3) (m=73, n=27)

[0199] The polymer compound (C-3) was synthesized according to the following scheme.

[0200] [chemical formula 14]

[0201]

[0202] Embodiment 3: m=73, n=27

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Abstract

Provided are a film for conversion to green and a film for conversion to red, with which the converted light can retain sufficient intensity over a long period. Also provided is an organic EL device for multicolor light emission that shows stable luminescent properties over a long period. Furthermore provided is a pendant type polymer characterized by having one or more kinds of repeating units represented by general formula (1) and one or more kinds of repeating units represented by general formula (2), (6), or (7), wherein when the molar ratio of (1) to (2), (6), or (7) is expressed by m:n,then n / (m+n) is from 1 / 100 to 100 / 100.

Description

technical field [0001] The invention relates to a side-group polymer compound which has fluorescence in a solid thin film state, can be processed by a coating process, and has high color conversion efficiency. Furthermore, the present invention relates to a color conversion film formed using the side group type polymer compound. Further, the present invention relates to a multi-color light-emitting organic EL device formed using the color conversion film. Background technique [0002] In recent years, organic fluorescent compounds have attracted attention in a wide range of fields such as light-emitting materials for organic electroluminescence, dye lasers, and bioimaging along with the progress of light-related technologies. In particular, this organic fluorescent compound can be applied to color conversion technology that absorbs a specific wavelength and emits light at a desired wavelength, and has been actively studied as an organic fluorescent compound for various appl...

Claims

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Application Information

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IPC IPC(8): C08F212/04C09K11/06H01L51/50H05B33/12C08F8/30
CPCH01L27/322C08F8/30C09D125/18H10K59/38C08F12/24C08F12/21Y10S428/917
Inventor 永井优冈田光裕滋野浩一
Owner ADEKA CORP
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