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Water-insoluble photopolymerizable composition, material and application

A photopolymerization, non-water-soluble technology, applied in the field of photosensitive materials, can solve the problems of complex synthesis process of photosensitizer, poor compatibility, poor storage stability, etc., achieve good storage stability, widen selection range, water resistance good effect

Active Publication Date: 2021-05-14
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the water-soluble photopolymer system, such as polyvinyl alcohol system, due to the hygroscopicity of the film-forming agent and other problems, the image quality is not high, and the storage stability is relatively poor; the water-insoluble photopolymer system, such as polyacetic acid Although there is no problem of hygroscopicity in the vinyl ester system, the photosensitizer of the water-insoluble system is generally an organic compound with a conjugated system. The synthesis process of these photosensitizers is complicated, the yield is low, and the cost is high, and they do not have a conjugated system. The photosensitizer has poor compatibility with water-insoluble systems, which limits the development and application of water-insoluble photopolymers

Method used

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  • Water-insoluble photopolymerizable composition, material and application
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  • Water-insoluble photopolymerizable composition, material and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Step 1: Prepare a water-insoluble photopolymerizable composition solution

[0045] 20% of film-forming agent polyvinyl acetate, 0.5% of photosensitizer Rose Bengal, 5% of photoinitiator tris(trimethylsilyl)silane, 5% of monomer benzyl methacrylate, dissolved in solvent dimethyl methylene In 69.5% sulfone, it is configured as a water-insoluble photopolymerizable composition solution.

[0046] Step 2: Preparation of water-insoluble photopolymer material

[0047] The solution of the non-water-soluble photopolymerization composition is formed into a film and dried under the condition of 50° C. to prepare a photopolymer holographic material by drip coating under the environment of a red safety light.

[0048] The performance test results of the obtained photopolymer holographic material: the maximum diffraction efficiency η max =80%, refractive index modulation Δn=1.38×10 -4 , Photosensitivity S=1.49cm / mJ.

Embodiment 2

[0050] Step 1: Prepare a water-insoluble photopolymerizable composition solution

[0051] Film-forming agent polyvinyl acetate 5%, photosensitizer Rose Bengal 0.01%, photoinitiator N-phenylglycine 0.5%, monomer benzyl methacrylate 1%, fluorine surfactant FC-44300.1% Used as a leveling agent, dissolved in 93.39% N, N-dimethylformamide as a solvent, and configured as a water-insoluble photopolymerizable composition solution.

[0052] Step 2: Preparation of water-insoluble photopolymer material

[0053] The solution of the water-insoluble photopolymerization composition is sprayed under the environment of a red safety light, and dried at 30° C. to form a film to prepare a photopolymer holographic material.

[0054] The performance test results of the obtained photopolymer holographic material: the maximum diffraction efficiency η max =82%, refractive index modulation Δn=1.40×10 -4 , Photosensitivity S=1.56cm / mJ.

Embodiment 3

[0056] Step 1: Prepare a water-insoluble photopolymerizable composition solution

[0057] Film-forming agent polymethyl methacrylate 20%, photosensitizer Rose Bengal 1%, photoinitiator 2-(4-methoxyphenyl)-4,6-bis(trichloromethyl)-1,3 , 5-triazine 5%, monomeric benzyl methacrylate 5%, fluorosurfactant FC-44300.1% are used as leveling agent, dissolved in solvent formamide 68.9%, configured as non-water-soluble photoinduced Polymer composition solution.

[0058] Step 2: Preparation of water-insoluble photopolymer material

[0059] The solution of the non-water-soluble photopolymerization composition is formed into a film and dried under the condition of 50° C. to prepare a photopolymer holographic material by drip coating under the environment of a red safety light.

[0060] The performance test results of the obtained photopolymer holographic material: the maximum diffraction efficiency η max =75%, refractive index modulation Δn=1.32×10 -4 , Photosensitivity S=1.92cm / mJ.

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Abstract

A water-insoluble photopolymerizable composition, material and application, the composition includes a photosensitizer, a photoinitiator and a solvent, wherein: the photosensitizer is selected from anthraquinone organic salt compounds, cyclopentanone compounds, fragrance One or more of the ketone compounds; the photoinitiator is selected from one or more of the organosilane compounds, amine compounds, biimidazole compounds, triazine compounds, iodonium salt compounds species; the solvent comprises a strong polar solvent with a polarity value greater than 5. The water-insoluble photopolymerizable composition of the invention has good storage stability, the raw materials are cheap and easy to obtain, and can greatly reduce the cost of the photopolymer holographic material.

Description

technical field [0001] The invention relates to the technical field of photosensitive materials, in particular to a water-insoluble photopolymerizable composition, material and application. Background technique [0002] With the development of information technology in recent years, people's demand for massive data storage and holographic three-dimensional display is becoming more and more urgent. Photopolymer materials are favored because of their high diffraction efficiency and refractive index modulation, high storage stability, and no need for wet processing. They are widely used in large-capacity data storage, immersive holographic maps, and LCD liquid crystals. Displays, holographic anti-counterfeiting trademarks and other fields. Due to the high energy and stability of photons generated by green lasers, the quality of images is higher than that of red-sensitive photopolymers. Therefore, green-sensitive photopolymers have greater application prospects. [0003] Photo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/004G03F7/027G03H1/00
CPCG03F7/004G03F7/027G03H1/00
Inventor 李卫平史志伟陈海宁刘慧丛
Owner BEIHANG UNIV
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