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Tribranched azobenzene hybrid material with photoinduced deformation, and preparation method thereof

A hybrid material and photodeformation technology, applied in the field of composite functional materials, can solve the problem of single form of new energy utilization

Inactive Publication Date: 2016-12-07
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But our use of these new energy forms is relatively simple, and there is still a lot of room for development

Method used

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  • Tribranched azobenzene hybrid material with photoinduced deformation, and preparation method thereof
  • Tribranched azobenzene hybrid material with photoinduced deformation, and preparation method thereof
  • Tribranched azobenzene hybrid material with photoinduced deformation, and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0026] 1) Preparation of three-branched azobenzene: 30 mmol of p-aminoazophenyl-4-sulfonic acid, 70 mmol of triphenyl phosphite and 50 mmol of pyridine were dissolved in dimethylacetamide to obtain a yellow transparent solution. Under the protection of nitrogen, react with 10 mmol 1,3.5-benzenetricarboxylic acid, raise the temperature to 115° C., and react for 4 hours to obtain the crude product of triple azo. After recrystallization, the three-branched azobenzene monomer we want is obtained.

[0027] 2) Preparation of photodeformable three-branched azobenzene hybrid material: three-branched azobenzene was added to polydiallyldimethylammonium chloride, and their concentration ratio was 1 mmol: 100 mmol. Wherein the concentration ratio of sulfonate ion to polydiallyldimethylammonium chloride ion is 3mmol:100mmol. A reddish-brown three-branched azobenzene hybrid material was obtained.

[0028] The hybrid material is made into a thin film by spin coating, and the thin film will...

Embodiment 2

[0030] 1) Preparation of three-branched azobenzene: 40 mmol of p-aminoazophenyl-4-sulfonic acid, 70 mmol of triphenyl phosphite and 50 mmol of pyridine were dissolved in dimethylacetamide to obtain a yellow transparent solution. Under the protection of nitrogen, react with 10 mmol 1,3.5-benzenetricarboxylic acid, raise the temperature to 115° C., and react for 4 hours to obtain the crude product of triple azo. After recrystallization, the three-branched azobenzene monomer we want is obtained.

[0031] 2) Preparation of photodeformable three-branched azobenzene hybrid material: three-branched azobenzene was added to polydiallyldimethylammonium chloride, and their concentration ratio was 1.5mmol:100mmol. Wherein the concentration ratio of sulfonate ion and polydiallyldimethylammonium chloride ion is 4.5mmol:100mmol. A reddish-brown three-branched azobenzene hybrid material was obtained.

[0032] The hybrid material is made into a thin film by spin coating, and the thin film wi...

Embodiment 3

[0034] 1) Preparation of three-branched azobenzene: 50 mmol of p-aminoazophenyl-4-sulfonic acid, 70 mmol of triphenyl phosphite and 50 mmol of pyridine were dissolved in dimethylacetamide to obtain a yellow transparent solution. Under the protection of nitrogen, react with 10 mmol 1,3.5-benzenetricarboxylic acid, raise the temperature to 115° C., and react for 4 hours to obtain the crude product of triple azo. After recrystallization, the three-branched azobenzene monomer we want is obtained.

[0035] 2) Preparation of photodeformable three-branched azobenzene hybrid material: three-branched azobenzene was added to polydiallyldimethylammonium chloride, and their concentration ratio was 2mmol:100mmol. Wherein the concentration ratio of sulfonate ion to polydiallyldimethylammonium chloride ion is 6mmol:100mmol. A reddish-brown three-branched azobenzene hybrid material was obtained.

[0036] The hybrid material is made into a thin film by spin coating, and the thin film will be...

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Abstract

The invention relates to a tribranched azobenzene hybrid material with photoinduced deformation, and a preparation method thereof. A cross-linked structure formed through electrophilic addition of sulfonate radicals of tribranched azobenzene and ammonium ions in poly(diallyldimethylammonium chloride) is the deformed tribranched azobenzene / poly(diallyldimethylammonium chloride) hybrid material. The cis-trans isomerism of azo of a cross-linked polymer under lights influences the form of the polymer, so the prepared polymer bends and deforms under the lights, and becomes the tribranched azobenzene / poly(diallyldimethylammonium chloride) hybrid material with photoinduced deformation. The hybrid material is spin-coated to produce a film, the film has upward bending deformation under ultraviolet irradiation, and the bent film recovers to the original shape in 5-10 min after the ultraviolet lights are removed.

Description

technical field [0001] The invention designs a method for preparing a photodeformable three-branched azobenzene / polydiallyldimethylammonium chloride hybrid material, which has important application prospects in future optical braking and belongs to the field of composite functional materials. Background technique [0002] The rapid development of my country's economy in the 21st century has made new energy technologies develop rapidly, and my country's sustainable development strategy has increased our demand for green and environmentally friendly new energy. Among the known new energy sources, wind energy, tidal energy, solar energy and biomass energy are widely used and the technologies are relatively mature. But our use of these new energy forms is relatively simple, and there is still a lot of room for development. [0003] Light energy has excellent characteristics such as environmental protection, remote controllability, and instantaneous controllability. Therefore, p...

Claims

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Application Information

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IPC IPC(8): C08F26/02C08F8/36
CPCC08F8/36C08F26/02
Inventor 封伟杨伟翔冯奕钰
Owner TIANJIN UNIV
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