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Photoinduced-deformation high polymer material based on triplet state-triplet state annihilation up-conversion luminescence

A technology of polymer materials and conversion materials, applied in the field of photoresponsive polymer materials, can solve problems such as not found

Active Publication Date: 2014-01-01
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After searching, there is currently no report on the combination of triplet-triplet annihilation upconversion materials and photodeformable liquid crystal polymers containing azophenyl groups

Method used

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  • Photoinduced-deformation high polymer material based on triplet state-triplet state annihilation up-conversion luminescence
  • Photoinduced-deformation high polymer material based on triplet state-triplet state annihilation up-conversion luminescence
  • Photoinduced-deformation high polymer material based on triplet state-triplet state annihilation up-conversion luminescence

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0040] Embodiment 1 The structural formula of the material is:

[0041]

[0042] Platinum Tetraphenylbenzoporphyrin (PtTPBP) 9-10-Diphosphorylphenylanthracene (YN2)

[0043] In this embodiment, a polymer bilayer film material is prepared by mechanical pressure-induced bonding. The up-conversion materials selected in this example are the sensitizer palladium octaethylporphyrin and the annihilate 9,10-diphenylanthracene, and the liquid crystal polymer material is a liquid crystal polymer film formed after polymerization of A9ABT and C9A.

[0044] see figure 1 As shown, tetraphenylbenzoporphyrin palladium and YN2 were first dissolved in polyurethane N, N'-dimethylformamide solution, and then the mixed suspension was coated on a glass substrate and dried to form a film. Then, the surface of the prepared polyurethane film mixed with PtTPBP and YN2 is coated with polyacrylate adhesive, and bonded with the liquid crystal polymer film. Then press up and down with a flat press pl...

Embodiment 2

[0045] Embodiment 2 The structural formula of the material is:

[0046]

[0047] Palladium Octaethylporphyrin (PdOEP) 9,10-Diphenylanthracene (DPA)

[0048] In this embodiment, a liquid crystal polymer composite film is prepared by thermal polymerization in the in-situ polymerization method. see figure 2 Shown: First mix A9ABT and C9A in a molar ratio of 4:6, then add 5% thermal initiator azobisisobutylcyanide of the sum of the molar numbers of A9ABT and C9A, and then add the sum of the mass of A9ABT and C9A 5 % octaethylporphyrin palladium and 9,10-diphenylanthracene. After mixing evenly, pour it into a liquid crystal cell made of two substrates. The substrate is coated with an orientation-treated polyimide film, and a spacer material with a certain diameter is placed between the two substrates to maintain a certain distance so as to control the thickness of the liquid crystal polymer composite film. Control the temperature at 120° C., polymerize for 24 hours, and op...

Embodiment 3

[0049] The structural formula of embodiment 3 material is:

[0050]

[0051] Octabutoxyphthalocyanine palladium rubrene

[0052] In this embodiment, the photopolymerization method in the in-situ polymerization method is used to prepare the liquid crystal polymer composite film. join figure 2 As shown, first mix A11AB6 and DA11AB in a molar ratio of 90:10, then add A11AB6 and DA11AB molar sum of 5% photoinitiator, then add A11AB6 and DA11AB mass sum of 5% octabutoxy phthalocyanine palladium and rubrene mixture. After mixing evenly, pour it into a liquid crystal cell made of two substrates. The substrate is coated with an orientation-treated polyimide film, and a spacer material with a certain diameter is placed between the two substrates to maintain a certain distance so as to control the thickness of the liquid crystal polymer composite film. Use a heating platform to control the temperature at 100°C, and when the wavelength emitted by the light source is greater than ...

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Abstract

The invention belongs to the filed of photoresponse high polymer materials and particularly relates to a photoinduced-deformation high polymer material based on a triplet state-triplet state annihilation up-conversion luminescence mechanism. The material is composed of liquid crystal polymers containing azo phenyl groups and up-conversion luminescent materials based on triplet state-triplet state annihilation. The liquid crystal polymers containing the azo phenyl groups do not have the stimulation responsiveness on long-wavelength visible light or near-infrared light. The up-conversion luminescent materials of triplet state-triplet state annihilation are introduced in the material system preparing process, short-wave visible light enabling the azo phenyl groups to have the stimulation response is generated in the up-conversion process, and therefore a whole material system can deform under irradiation of the long-wavelength visible light or the near-infrared light. The long-wavelength visible light or the near-infrared light drives the material system so as to promote application of the photoinduced-deformation high polymer material in field of biochips, aspects of micro executing devices and the like.

Description

technical field [0001] The invention belongs to the technical field of photoresponsive polymer materials, and in particular relates to a photodeformable polymer material system and a preparation method thereof based on the principle of triplet-triplet annihilation upconversion luminescence. Background technique [0002] In recent years, photoresponsive deformable polymer materials have attracted more and more attention because of their ability to directly convert light energy into mechanical energy. Photodeformable cross-linked liquid crystal polymers have unique properties due to the combination of the rubber elasticity of the polymer network and the order of liquid crystals, which has aroused extensive research interest. For example, azo-based cross-linked liquid crystal polymer films in Bending and recovery behavior after exposure to UV and visible light. Through reasonable design, liquid crystal polymer materials can complete some complex movements such as stretching, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/36C08F222/22C08F2/48C08L33/14C08L35/02B32B7/12B32B27/06B32B27/30
Inventor 俞燕蕾李富友蒋臻徐明
Owner FUDAN UNIV
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