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A liquid crystalline copolymer with electrical storage properties, its preparation method and its application in electrical storage

A technology of electric storage and copolymers, applied in the field of copolymers, can solve the problems of unguaranteed storage stability, few types of materials, and inability to produce large-scale industrialization

Active Publication Date: 2019-03-26
新纶电子材料(常州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are currently materials for electrical storage, most of them are still in the laboratory stage and cannot be mass-produced industrially. In addition, there are few types of materials that can be used for electrical storage, and their storage stability cannot be guaranteed.

Method used

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  • A liquid crystalline copolymer with electrical storage properties, its preparation method and its application in electrical storage
  • A liquid crystalline copolymer with electrical storage properties, its preparation method and its application in electrical storage
  • A liquid crystalline copolymer with electrical storage properties, its preparation method and its application in electrical storage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] In this Example 1, a preparation method of the above-mentioned liquid crystalline copolymer with electric storage properties, 0.5 g of monomer X, 0.8 g of monomer Y, 0.02 g of azobisisobutyronitrile and cyclohexanone 2 Add mL into a polymerization tube, react in an oxygen-free environment at 80°C for 12 h to 20 h, then pour the reaction product into methanol to precipitate a solid, and dry to obtain the copolymer. Wherein, azobisisobutyronitrile is used as a catalyst for the polymerization reaction; cyclohexanone is used as a solvent, and any one or more of toluene, dimethylformamide or dichloroethane can also be used to replace; an oxygen-free environment can be passed This is achieved by introducing an inert gas into the reaction vessel, and the inert gas that can be used includes any one or more of nitrogen, argon, and helium.

[0039] In this example 1, monomer X can be purchased from the market, and can also be prepared by the following method: the parts mentioned ...

Embodiment 2

[0043] An electric storage device using the liquid crystalline copolymer with electric storage properties obtained in Example 1, such as image 3 As shown, it includes a first electrode layer 1, an active layer 2 and a second electrode layer 3 from bottom to top, wherein the active layer 2 is the copolymer obtained in Example 1 with electrical storage properties. In this embodiment 2, the thickness of the active layer 2 is 100 nm to 200 nm; the first electrode layer 1 is conductive glass, the second electrode layer 3 is a metal electrode, further, the second electrode layer 3 is a magnesium electrode, silver electrode, calcium electrode or aluminum electrode.

Embodiment 3

[0045] A method for preparing the electrical storage device of Example 2, using ITO glass as the first electrode layer 1, using an organic solvent to ultrasonically clean the ITO glass, and drying to remove the organic solvent. In this Example 3, chloroform, Acetone and isopropanol were used to ultrasonically clean the ITO glass in turn; at room temperature, the liquid crystal copolymer with electrical storage properties prepared in Example 1 was dissolved in chloroform, and the configuration was 10 mg / mL-20 mg / mL Stir the solution at a stirring speed of 200 rpm to 1200 rpm for 6 h to 10 h to ensure that the liquid crystalline copolymer with electrical storage properties is fully dissolved; the prepared solution is stirred at a speed of 600 rpm to 4000 rpm Spin coating is on one side of ITO glass, forms the active layer 2 that thickness is 150 nm, and in present embodiment 3, spin-coating rotating speed is preferably 1500 rpm; ×10 -4 A 100 nm aluminum electrode is plated on ...

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Abstract

The invention relates to a liquid crystal copolymer with electric storage characteristics and a preparation method thereof, and application of the copolymer in electric storage. The liquid crystal copolymer with electric storage characteristics is formed by copolymerizing a monomer X and a monomer Y, wherein the monomer X is a carbazolyl group, and the monomer Y is an azo group; the mass percent of the monomer X is 30-90%, and the mass percent of the monomer Y is 10-70%; and the number-average molecular weight of the copolymer is 5000-15000. The invention also relates to a method for preparing the copolymer. The invention also relates to an electric storage device prepared from the copolymer and a preparation method of the electric storage device. The liquid crystal copolymer with electric storage characteristics and the electric storage device prepared from the copolymer implement ternary storage by utilizing the liquid crystal property, have excellent stability, provide more options for large-scale application of organic electric storage materials and devices, and solve the problems of fewer varieties of electric storage materials (especially fewer varieties of electric storage materials capable of implementing ternary storage) and poor effects at present to some extent.

Description

technical field [0001] The invention relates to a copolymer, in particular to a liquid crystal copolymer with electrical storage properties and a preparation method thereof. [0002] The invention also relates to an electric storage device prepared by using the copolymer, and a preparation method of the electric storage device. Background technique [0003] Traditional information storage methods mainly use inorganic silicon semiconductor materials. However, due to the high production cost of silicon and other inorganic materials, complex processes, and the inability to manufacture large areas, they cannot meet the needs of today's society for information storage. So it motivates us to look for materials with lower cost, which can be manufactured in large area and have higher information storage capacity. Compared with silicon devices that record data by marking "0" and "1" states, the data storage of organic electrical memory devices is a new mode, which changes organic ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/14
CPCC08F212/14
Inventor 张盼
Owner 新纶电子材料(常州)有限公司
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