Non-conjugated fluorescent polymer as well as preparation method and application thereof

A fluorescent polymer and non-conjugated technology, applied in the field of fluorescent materials, can solve the problems of polymer luminescent properties not being significantly improved, easy cross-linking, low efficiency, etc., to achieve excellent photobleaching resistance, diverse and controllable structures, Excellent bonding effect

Active Publication Date: 2017-06-23
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

That is, the aggregation of carbonyl groups in polymers can induce fluorescence, but the fluorescence efficiency of these polymers is low, and there are no reports of solid-state luminescence of these polymers
[0009] In order to further improve the fluorescence efficiency, it has been reported to synthesize hyperbranched and dendritic polyamides, polyetheramides and polyureas. Insufficient cross-linking, and the luminescent properties of the polymer have not been significantly improved

Method used

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  • Non-conjugated fluorescent polymer as well as preparation method and application thereof
  • Non-conjugated fluorescent polymer as well as preparation method and application thereof
  • Non-conjugated fluorescent polymer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] (1) First mix 50mL 1,3-bis(3-glycidyloxypropyl)tetramethyldisiloxane (CAS No: 126-80-7), 1.177g hexadecyltrimethylbromide Ammonium chloride (CAS No: 57-09-0) and 40 mg of nanometer zinc-cobalt double metal cyanide complex [Zn-Co(III) DMCC] were added to a 100 mL autoclave, and then filled with 3 MPa of carbon dioxide gas in In the reaction kettle, heat the reaction kettle to 110°C and react for 24 hours. After cooling the reaction kettle to room temperature, the unreacted carbon dioxide is released to obtain a light yellow reaction product. Remove the catalyzer cetyltrimethylammonium bromide and zinc-cobalt double metal cyanide complex to obtain the transparent oily coupling product whose end group is five-membered cyclic carbonate, the structural formula is as follows, 1 H NMR and 13 The spectrum of C NMR is as figure 1 :

[0058]

[0059] (2) Add 3 mL of the coupling product prepared in step (1) into a three-necked flask, and add another 0.9457 g of 1,6-hexameth...

Embodiment 2

[0064] (1) The preparation of the linear fluorescent polymer is the same as in Example 1.

[0065] (2) 0.01 g of the obtained linear fluorescent polymer and 0.99 g of polyethylene terephthalate are miscible in 100 mL of tetrahydrofuran, and after mixing evenly, the solvent is evaporated under reduced pressure to obtain a fluorescent polyethylene terephthalate The composition of ethylene glycol diformate and non-isocyanate polyurethane can significantly improve the strength and high temperature resistance of the material, and can be used in the fields of fluorescent fibers or fluorescent films, and its tetrahydrofuran solution can also fluoresce, which has obvious excitation dependence sex.

Embodiment 3

[0067] (1) The preparation of the linear fluorescent polymer is the same as in Example 1.

[0068] (2) 0.50 g of the obtained linear fluorescent polymer and 0.50 g of polyethylene terephthalate are miscible in 100 mL of tetrahydrofuran, and after mixing evenly, the solvent is evaporated under reduced pressure to obtain a fluorescent polyethylene terephthalate The composition of ethylene glycol diformate and non-isocyanate polyurethane can significantly improve the strength and high temperature resistance of the material, and can be used in the fields of fluorescent fibers or fluorescent films, and its tetrahydrofuran solution can also fluoresce, which has obvious excitation dependence sex.

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Abstract

The invention provides a non-conjugated fluorescent polymer. The non-conjugated fluorescent polymer comprises a repeated unit shown as a formula (I), wherein M is selected from two formulas shown in the description; N is selected from a formula shown in the description; n' is selected from 1 to 20; Q is selected from eight formulas shown in the description; R is alkyl with the carbon number of 1 to 10; and n is selected from natural numbers of 3 to 150. (The formula (I) is shown in the description.).

Description

technical field [0001] The invention relates to the technical field of fluorescent materials, in particular to a non-conjugated fluorescent polymer and its preparation method and application. Background technique [0002] Fluorescent materials mainly include inorganic fluorescent materials, organic small molecule fluorescent materials, macromolecular fluorescent materials and nano fluorescent materials. Among them, organic macromolecular fluorescent materials refer to some long-chain polymer conjugated polymers, which can be main chain conjugated or Conjugated side chains. The synthesis methods mainly include: [0003] 1) Polymerization of monomers with fluorescent properties to generate polymers; [0004] 2) Chemical modification of polymers with chromophores; [0005] 3) Polymerization of fluorescent polymers from non-fluorescent monomers. [0006] At present, the mainstream fluorescent polymers are mainly conjugated polymers such as arynes, pterenes, aromatic amines, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G71/04C09K11/06H01L33/50
CPCC08G71/04C09K11/06C09K2211/14H01L33/502
Inventor 张兴宏刘斌张滢滢杜滨阳
Owner ZHEJIANG UNIV
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