Photo-acid polymer-doped spirooxazine or spiropyran reversible photochromic film, preparation method and use thereof

A photochromic and spiropyran technology is applied in the field of material chemistry to achieve the effects of improving the ring-opening efficiency and photochemical reaction yield, stabilizing the ring-opening structure, and preventing oxidation side reactions.

Inactive Publication Date: 2010-12-29
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Using photoacid polymers to prepare reversible photochromic spirooxazine or spiropyran solid films with light-responsive ring-opening state stability, and successfully applied to reversible optical information storage, has not been reported in the literature

Method used

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  • Photo-acid polymer-doped spirooxazine or spiropyran reversible photochromic film, preparation method and use thereof
  • Photo-acid polymer-doped spirooxazine or spiropyran reversible photochromic film, preparation method and use thereof
  • Photo-acid polymer-doped spirooxazine or spiropyran reversible photochromic film, preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045]

[0046] 1. Take N-propionyl-benzospirooxazine (NSPO) as a sample, blend with polymer PVDC and polymethyl methacrylate (PMMA) at a mass ratio of 1:50, and dissolve them in tetrahydrofuran, Preparation of NSPO 10 -3 mol / L tetrahydrofuran solution. The above two kinds of mixtures were used to prepare uniform and transparent NSPO-PVDC and NSPO-PMMA films on the quartz glass sheet by drop coating method.

[0047] 2. Measure the absorption spectra of NSPO-PVDC and NSPO-PMMA films before and after 254nm ultraviolet light irradiation (Hitachi UV-4100 ultraviolet-visible spectrometer).

[0048] 3. After being irradiated with 254nm ultraviolet light for 5 minutes, the maximum absorption peak of the NSPO-PVDC film was blue-shifted by 85nm compared with the NSPO-PMMA film, and the absorbance increased by 11 times. Such as figure 1 , as shown in 2.

[0049] 4. After irradiating with ultraviolet light, irradiate the NSPO-PMMA film with 610nm visible light (the solar light sourc...

Embodiment 2

[0053]

[0054] 1. Take 5-hydroxybenzospirooxazine (HSPO) as a sample, blend with polymer PVDC and PMMA respectively at a mass ratio of 1:50, and dissolve in tetrahydrofuran respectively to prepare HSPO 10 -3 mol / L tetrahydrofuran solution. A uniform and transparent film is prepared on a quartz glass plate by drop coating.

[0055] 2. Measure the absorption spectra of HSPO-PVDC and HSPO-PMMA before and after 254nm ultraviolet light irradiation.

[0056] 3. After being irradiated with 254nm ultraviolet light for 5 minutes, the maximum absorption peak of the HSPO-PVDC film was blue-shifted by 28nm compared with the NSPO-PMMA film, and the absorbance increased by 8 times. Such as image 3 , as shown in 4.

[0057] 4. After irradiating with ultraviolet light, irradiate the HSPO-PMMA film with 568nm visible light (the solar light source simulator passes through the 568nm filter) and irradiate the HSPO-PMMA film with 540nm visible light (the solar light source simulator passes...

Embodiment 3

[0061]

[0062] 1. Take N-propionyl-4-nitrospiropyran (NSPR) as a sample, blend it with polymer PVDC and PMMA at a mass ratio of 1:50, and dissolve it in tetrahydrofuran to prepare NSPR 10 -3 mol / L tetrahydrofuran solution. A uniform and transparent film is prepared on a quartz glass plate by drop coating.

[0063] 2. Measure the absorption spectra of NSPR-PVDC and NSPR-PMMA before and after 254nm ultraviolet light irradiation.

[0064] 3. After being irradiated with 254nm ultraviolet light for 5 minutes, the maximum absorption peak of the NSPR-PVDC film was blue-shifted by 120nm compared with the NSPR-PMMA film, and the absorbance doubled. Such as Figure 5 , as shown in 6.

[0065] 4. After irradiating with ultraviolet light, irradiate the NSPR-PMMA film with 562nm visible light (the solar light source simulator passes through the 562nm filter) and irradiate the NSPR with 422nm visible light (the solar light source simulator passes through the 422nm filter). -PVDC fil...

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Abstract

The invention belongs to the field of material chemistry and relates to a stable light storage material, in particular to a spirooxazine or spiropyran reversible photochromism film doped with optical acid polymers and a preparation method as well as use thereof. The spirooxazine or the spiropyran is taken as the raw material and respectively mixed with an optical functional doping mediump-opticalacid polymer polyvinylidene chloride-methyl acrylate (PVDC). The film is prepared respectively on silex glass; acidoid chlorine hydride released by the PVDC under the irradiation of ultraviolet lightis used for stabilizing the open-loop state of the doped spirooxazine or spiropyran; when the film is irradiated by visible light after being irradiated by ultraviolet light, the spirooxazine or spiropyran returns to the close-loop state. The spirooxazine or spiropyran reversible photochromism film doped with optical acid polymers is applicable to the preparation of light storage device.

Description

technical field [0001] The invention belongs to the field of material chemistry and relates to a class of stable optical storage materials, in particular to a photoacid polymer-doped spirooxazine or spiropyran reversible photochromic film and its preparation method and application. Background technique [0002] Optical storage technology based on photochromic optical storage materials has attracted much attention due to its advantages of fast, high compatibility, high density, non-destructive readout and erasability. As a large family of photochromic molecules, spirooxazine or spiropyran molecules have been extensively studied on their physical and chemical mechanism of photoreaction and their application as optical information storage materials. Spirooxazine or spiropyran can not only open the ring under the action of external light stimulation, but also complex with cations such as protons to open the ring. However, the proton-complexed spirooxazine or spiropyran undergoe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K9/00C08J5/18C08L27/08C08K5/357C08K5/1545G11B7/242
Inventor 李风煜王森宋延林杜大明江雷
Owner INST OF CHEM CHINESE ACAD OF SCI
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