Preparation method and application of transparent polyimide electrochromic film
A transparent polyimide, electrochromic technology, applied in the direction of color-changing fluorescent materials, chemical instruments and methods, layered products, etc., can solve problems affecting the promotion and application of polyimide films, poor electrochromic effect, Problems such as poor electrical conductivity, to achieve good promotion prospects, enhanced electrochromic effects, and good quality effects
Inactive Publication Date: 2020-10-16
珠海智湾科技有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide a preparation method and application of a transparent polyimide electrochromic film, to solve the problem that in the prior art, the polyimide film has simple structural components, poor electrical conductivity, and poor electrochromic effect, which greatly Problems affecting the widespread promotion and application of polyimide film as a new type of electrochromic material
Method used
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[0015] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0016] A kind of preparation method of transparent polyimide electrochromic film, this transparent polyimide polymer film is made of diaminocobalt porphyrin, triphenylamine diamine and 4,4'-biphenyl ether dianhydride (ODPA ) copolymerization, synthesized poly(diaminocobalt porphyrin) imide, the molecular structural formula of this transparent polyimide electrochromic film is:
[0017]
[0018] Wherein, the molecular structural formula of this diaminocobalt porphyrin is as follows:
[0019]
[0020] Wherein, the molecular stru...
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The invention relates to a preparation method and application of a transparent polyimide electrochromic film. According to the invention, diamino cobalt porphyrin, triphenylamine diamine and 4, 4 '-diphenyl ether dianhydride (ODPA) are subjected to copolymerization, the poly(diamino cobalt porphyrin)imide is synthesized; a poly(diamino cobalt porphyrin)imide film is used as a middle layer to prepare an electrochromic device with a three-layer structure. Compared with the prior art, polyimide film with simple structural components, conductive performance difference, the electrochromic effect ispoor; wide popularization and application of the polyimide film as a novel electrochromic material are greatly influenced; according to the scheme, metalloporphyrin is introduced, the structure of the polyimide film is improved, the molecular weight of a conjugated structure is increased, the polyimide film has a wide energy band of a near-infrared region, the electrochromic effect of the polyimide film is enhanced, and the polyimide film prepared through the scheme is easy to synthesize, high in yield, uniform in film forming, good in quality and good in popularization prospect.
Description
technical field [0001] The invention relates to the technical field of electrochromic thin films, in particular to a preparation method and application of a transparent polyimide electrochromic thin film. Background technique [0002] Electrochromism refers to the phenomenon that the optical properties of materials (reflectivity, transmittance, absorption rate, etc.) undergo stable and reversible color changes under the action of an external electric field. Materials with electrochromic properties are called electrochromic materials, and devices made of electrochromic materials are called electrochromic devices. The electrochromic layer is the core layer of the electrochromic device and is also the layer where the color change reaction occurs. According to the type, the electrochromic materials can be divided into inorganic electrochromic materials and organic electrochromic materials. [0003] Polyimide has excellent thermal stability, chemical corrosion resistance and mec...
Claims
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Login to View More IPC IPC(8): C08G73/10C08L79/08C08J5/18B32B27/28B32B27/06B32B33/00C09K9/02
CPCC08G73/1071C08G73/1057C08G73/1007C08J5/18B32B27/281B32B27/06B32B33/00C09K9/02C08J2379/08B32B2307/202B32B2307/40C09K2211/187
Inventor 王新
Owner 珠海智湾科技有限公司