Aniline oligomer derivative with electrochromic property and preparation method thereof

An electrochromic and oligomer technology, which is applied in the preparation of organic compounds, carboxylic acid amide preparation, color-changing fluorescent materials, etc., can solve the problems of difficult processing of polyaniline materials, and achieve easy control, simple operation steps, and synthetic routes simple effect
CN104016876AActive Publication Date: 2014-09-03BEIHANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2014-09-03

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Abstract

The invention discloses an aniline oligomer derivative with electrochromic property and a preparation method thereof. A class A electrochromic material obtained by the method is a linear aniline oligomer derivative with aniline oligomer in the middle and amino and carboxyl groups respectively at two ends, and the class A electrochromic material is obtained by reacting dicarboxylic anhydride with an aniline oligomer. A class B electrochromic material is a three-arm star-type aniline oligomer derivative and is prepared by reacting a triphenylamine homolog as a intermediate with the a class A linear aniline oligomer derivative; a class C electrochromic material is a three-arm star-type block aniline oligomer derivative prepared by introducing a polyethylene glycol ether chain into the obtained class B three-arm star-type aniline oligomer derivatives, and is a block copolymer with an electrochromic hard segment and an ionic conduction soft segment. The obtained class C three-arm star-type block aniline oligomer derivative also has outstanding characteristics of electrochromic and ion conduction functions, and can solve the problem of microphase separation of an electrochromic layer and ionic conductor layer of a conventional electrochromic device.
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Description

technical field

[0001] The invention belongs to the field of organic electrochromic materials, in particular to a class of aniline oligomer derivatives and a preparation method thereof. A series of aniline oligomer derivatives prepared by the preparation method of the present invention can be used as electrochromic materials. Background technique

[0002] Electrochromism belongs to the category of electrochemical properties of materials. The electrochromic phenomenon generally referred to refers to a phenomenon in which the absorption spectrum of a material changes reversibly under the action of an external electric field or current. This change is manifested as a reversible change in the color and light transmittance of the material in appearance, and has a certain degree of persistence and stability in time.

[0003] In the development history of electrochromic devices, the materials of transparent conductive layer and ion conductive layer have not changed much, while th...

Claims

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