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Bonded polyurethane nonlinear optical material as well as preparation method and application thereof

A technology of nonlinear optics and polyurethane, applied in the field of optical materials, can solve the problem of few reports on optical nonlinearity of composite materials

Active Publication Date: 2021-09-14
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, adding pyrene derivatives to polyurethane materials, there are few reports on the study of optical nonlinearity of composite materials.

Method used

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  • Bonded polyurethane nonlinear optical material as well as preparation method and application thereof
  • Bonded polyurethane nonlinear optical material as well as preparation method and application thereof
  • Bonded polyurethane nonlinear optical material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A kind of preparation of bonding type polyurethane S1 / PU nonlinear optical material, comprises the following steps:

[0052]a. Add 0.115 g (0.7 mmol) of azobisisobutyronitrile (AIBN) to 7.8 g (0.06 mol) of hydroxyethyl methacrylate (HEMA), stir to dissolve it completely, and obtain a HEMA solution in which AIBN is dissolved.

[0053] b. In a 125mL round bottom flask, add 39mg (0.08mmol) of compound S1 to 18g (0.03mol) of polyethylene glycol (PEG600), and add 13.36g (0.06mol) of isophorone diisocyanate (IPDI ). Stir mechanically for 5 to 10 minutes at a water bath temperature of 25° C., and then add 0.037 g of dibutyltin dilaurate (DBTL) as a catalyst. After the reaction solution becomes clear, keep stirring for 15-20 minutes, then add the HEMA solution of AIBN, react for 15-20 minutes, and then stop stirring. Polyethylene glycol (PEG600), compound S1, hydroxyl groups on HEMA were reacted with isocyanate groups on IPDI.

[0054] c. Then use a vacuum pump to remove the...

Embodiment 2

[0062] A kind of preparation of bonding type polyurethane S2 / PU nonlinear optical material, comprises the following steps:

[0063] The preparation process of S2 / PU is the same as the preparation process of S1 / PU nonlinear optical material, only need to replace compound S1 in step b with compound S2, and finally obtain S2 / PU nonlinear optical material.

[0064] Adjust the amount of compound S2 to obtain S2 / PU nonlinear optical materials without compound S2 and with a mass content of compound S2 of 0.01%, 0.03%, 0.05%, 0.07%, 0.1%, and 0.2%, respectively. Physical picture such as figure 1 shown.

[0065] Depend on figure 1 It can be seen that with the increase of the compound S2 content, the optical color of the S2 / PU nonlinear optical material gradually changes from yellow to red, and also has good optical transparency, and can be used as an optically transparent material.

Embodiment 3

[0067] A kind of preparation of bonding type polyurethane S3 / PU nonlinear optical material, comprises the following steps:

[0068] The preparation process of the S3 / PU sheet is the same as the preparation process of the S1 / PU nonlinear optical material, only need to replace the compound S1 in step b with the compound S3, and finally obtain the S3 / PU nonlinear optical material.

[0069] Adjust the amount of compound S3 to obtain S3 / PU nonlinear optical materials that do not contain compound S3 and have a mass content of 0.05%, 0.1%, and 0.2% of compound S3 respectively. The physical pictures of each optical material are as follows figure 1 shown.

[0070] Depend on figure 1 It can be seen that with the increase of the content of the compound S3, the color of the S3 / PU nonlinear optical material gradually deepens, has good optical transparency, and can be used as an optically transparent material.

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Abstract

The invention provides a bonded polyurethane nonlinear optical material as well as a preparation method and application thereof. The bonded polyurethane nonlinear optical material is prepared by connecting a small-molecule pyrenyl Schiff base derivative into a polyurethane system. Compared with a small-molecule pyrenyl Schiff base derivative, a polyurethane material which does not have optical nonlinearity originally has stronger anti-saturation absorption and optical limiting performance. The optical nonlinearity of the pyrenyl Schiff base derivative can be controlled by changing the content of the added small-molecule pyrenyl Schiff base derivative, the purpose of adjusting the optical nonlinearity property of the pyrenyl Schiff base derivative is achieved, and the pyrenyl Schiff base derivative has controllable optical nonlinearity response. The bonded polyurethane nonlinear optical material is high in optical nonlinear response speed, short in recovery time and indistinguishable in a picosecond time domain, and can be made into an optical limiting and all-optical switch material for application.

Description

technical field [0001] The invention relates to a bonded polyurethane nonlinear optical material, a preparation method and application thereof, and belongs to the field of optical materials. Background technique [0002] Pyrene and its derivatives are widely used in many scientific fields such as organic light-emitting diodes, organic photovoltaic cells (OPVs), microenvironmental sensors, laser dyes, and biological probes. In addition, pyrene can be used as the basic unit for constructing π-conjugated extended derivatives. π-conjugated systems consist of connected π-bonds in which π-electrons move, and these structures have a significant modulation effect on the optical nonlinearity of materials. Pyrene derivatives are rich in π electrons, making them have high optical transmittance in the visible region. Therefore, pyrene and its derivatives have promising applications in nonlinear optics (NLO), such as optical limiting (OL) and all-optical switching (AOS). [0003] Orga...

Claims

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Application Information

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IPC IPC(8): C08G18/67C08G18/48C08G18/75C08F299/06
CPCC08G18/679C08G18/672C08G18/4833C08G18/755C08F299/065C08G18/48Y02P20/10
Inventor 高丽君张保丁崔静杨皓然方少明周立明李碧宇弋皓月宋瑛林李峰
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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