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Silicon group containing 1, 4-phenylene vinylidene and its preparation method and use

A technology of phenylene vinylene and disilylbenzene, which is applied in 1 field, can solve the problems of increasing the complexity of device manufacturing and affecting device performance, and achieve good carrier fluid injection and transmission capabilities, high luminous efficiency, and good film formation performance effect

Inactive Publication Date: 2005-06-29
徐良衡
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a single PPV material cannot meet its requirements
Therefore, some people use the method of adding a carrier transport layer. Due to the defects and interface effects between layers, the performance of the device is affected, and the complexity of device fabrication is also increased.

Method used

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  • Silicon group containing 1, 4-phenylene vinylidene and its preparation method and use
  • Silicon group containing 1, 4-phenylene vinylidene and its preparation method and use
  • Silicon group containing 1, 4-phenylene vinylidene and its preparation method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1 Synthesis of 2,5-bis(bismethoxyoctylsilyl)-PPV: the structural formula is as follows:

[0037]

[0038] (1) Synthesis of 1,4-bis(bismethoxyoctylsilyl)benzene: 10.0 grams (42mmol) of p-dibromobenzene was dissolved in 100ml of anhydrous tetrahydrofuran, and N 2 For protection, 50ml (100mmol) of 2M freshly prepared n-butyllithium tetrahydrofuran solution was slowly added dropwise at -78°C, and after maintaining the temperature for 3 hours, 20g (84mmol) dimethoxyoctane was slowly added dropwise at -78°C Chlorosilane, after 2 hours of reaction, the temperature was slowly raised to room temperature within 3 hours, and the reaction was completed at room temperature for 6 hours. The reactant was washed with water, dried and distilled under reduced pressure to obtain the product. Boiling point: 173°C / 0.2mmHg.

[0039] The analytical results of the product are as follows:

[0040] 1 H NMR (R3DR3l3 ): δ (ppm) 7.08 (4H, singlet, R1r-H), 1.45-1.15 (24H, multiplet), ...

Embodiment 2

[0049] Example 2 Synthesis of 2,5-bis(methoxybutoxyoctylsilyl)-PPV: the structural formula is as follows:

[0050]

[0051] (1) Synthesis of 1,4-bis(methoxybutoxyoctylsilyl)benzene: 10.0 grams of p-dibromobenzene (42mmol) were dissolved in 500ml of anhydrous tetrahydrofuran, passed into N 2 For protection, 100ml (200mmol) of 2M freshly prepared n-propyllithium tetrahydrofuran solution was slowly added dropwise at -70°C, and the reaction was maintained at this temperature for 3 hours. 40 g (142 mmol) of methoxybutoxyoctylchlorosilane was slowly added dropwise at -70°C, and after 2 hours of reaction, the temperature was slowly raised to room temperature within 3 hours, and the reaction was completed at room temperature for 12 hours. The reactant was washed with water, dried and distilled under reduced pressure to obtain the product. Boiling point: 181°C / 0.2mmHg.

[0052] The analytical results of the product are as follows:

[0053] 1 H NMR (R3DR3l 3 ): δ (ppm) 7.06 (4H,...

Embodiment 3

[0062] Example 3 Synthesis of 2,5-bis(methyloctyloctadecylsilyl)-PPV: the structural formula is as follows:

[0063]

[0064] (1) Synthesis of 1,4-bis(methyloctyloctadecylsilyl)benzene: 10.0 grams (42mmol) of p-dibromobenzene are dissolved in 200ml of anhydrous tetrahydrofuran, and N 2 For protection, 120ml (240mmol) of fresh 2M isooctyllithium tetrahydrofuran solution was slowly added dropwise at -80°C, and the reaction was maintained at this temperature for 8 hours. Slowly add 130 g (292 mmol) of methyloctyloctadecylchlorosilane dropwise at -80°C. After 5 hours of reaction, the temperature is slowly raised to room temperature within 3 hours, and the reaction is completed at room temperature for 12 hours. The reactant was washed with water, dried and distilled under reduced pressure to obtain the product. Boiling point: 168°C / 0.1mmHg.

[0065] The analytical results of the product are as follows:

[0066] 1 H NMR (R3DR3l 3 ): δ (ppm) 7.23 (4H, singlet, R1r-H), 1.50-1....

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Abstract

The invention is the method for preparing 1,4- containing silicon silicon group (Si-PPV) and its application. Compared with the present technology which has complex equipment, low lightening efficiency and unsatisfying heat stability, the invention uses polymer 3 as the raw material, generates 4 which then has coupling reaction with 6, generating 7, and the acquiring the active monomer through mole without water existence, the active monomer is changed into Si-PPV through Gilch reaction. The polymer has outstanding film-making performance, heat stability and lightening efficiency.

Description

field of invention [0001] The invention discloses a class of silicon group-containing 1,4-phenylene vinylene with high luminous performance of electric field luminescence, ie Si-PPV, its preparation method and application. The polymer can be used in the fields of light-emitting devices, photovoltaic cells, light-emitting diodes and the like. Background of the invention [0002] Since the 1990s, people have gained a better understanding of polymer electroluminescence. Electroluminescence is the process of converting electrical energy into light energy, that is, carrier double-injection luminescence. It has basically the same light-emitting mechanism as the ground tube, so they can also be regarded as a light-emitting diode: driven by the external voltage, the holes injected from the positive electrode and the electrons injected from the negative electrode are respectively transported to the light-emitting layer and Recombination occurs to release energy, and then the energy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12C09K11/06H05B33/00
Inventor 徐良衡李想姚红兵
Owner 徐良衡
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