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Ferroelectric polymer with phosphorescence effect, and preparation method thereof

A technology of ferroelectric polymer and phosphorescence effect, which is applied in the field of luminescent ferroelectricity to achieve good film-forming performance

Active Publication Date: 2019-09-20
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Apart from this, few studies have been conducted on polymer-based ferroelectric luminophores

Method used

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  • Ferroelectric polymer with phosphorescence effect, and preparation method thereof
  • Ferroelectric polymer with phosphorescence effect, and preparation method thereof
  • Ferroelectric polymer with phosphorescence effect, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for preparing a ferroelectric polymer with phosphorescent effect, comprising:

[0031] ① Preparation of poly(vinylidene fluoride-trifluoroethylene-trifluoroethylene) P(VDF-TrFE-CTFE): 10g poly(vinylidene fluoride-trifluoroethylene)P(VDF-CTFE) and 0.82g chlorine Add cuprous chloride into a four-neck flask, use high-purity argon to completely replace the air in the bottle, inject 200mL of dry anaerobic NMP solvent into the bottle with a syringe, stir at room temperature, and after the polymer is completely dissolved, add 6.52gBpy Dissolve in 30mL NMP, and inject the Bpy solution into the reaction flask with a syringe. After equilibrating at room temperature for 20min, raise the temperature of the system to 120°C, react for 24h under an argon atmosphere, and then cool to room temperature. Precipitate in deionized water, then dissolve with NMP again, wash with deionized water again, repeat the solvent-precipitation operation 3 times to remove Cu ions in the system ...

Embodiment 2

[0036] A method for preparing a ferroelectric polymer with phosphorescent effect, comprising:

[0037] ① Preparation of poly(vinylidene fluoride-trifluoroethylene-trifluoroethylene) P(VDF-TrFE-CTFE): 10g poly(vinylidene fluoride-trifluoroethylene)P(VDF-CTFE) and 2.1g chlorine Add cuprous chloride to a four-neck flask, use high-purity argon to completely replace the air in the bottle, inject 200mL of dry anaerobic NMP solvent into the bottle with a syringe, stir at room temperature, and after the polymer is completely dissolved, add 11.6gBpy Dissolve in 30mL NMP, and inject the Bpy solution into the reaction flask with a syringe. After equilibrating at room temperature for 20min, raise the temperature of the system to 120°C, react for 24h under an argon atmosphere, and then cool to room temperature. Precipitate in deionized water, then dissolve with NMP again, wash with deionized water again, repeat the solvent-precipitation operation 3 times to remove Cu ions in the system as ...

Embodiment 3

[0041] A method for preparing a ferroelectric polymer with phosphorescent effect, comprising:

[0042] ① Preparation of poly(vinylidene fluoride-trifluoroethylene-trifluoroethylene) P(VDF-TrFE-CTFE): 10g poly(vinylidene fluoride-trifluoroethylene)P(VDF-CTFE) and 0.92g chlorine Add cuprous chloride into a four-neck flask, use high-purity argon to completely replace the air in the bottle, inject 200mL of dry anaerobic NMP solvent into the bottle with a syringe, stir at room temperature, and after the polymer is completely dissolved, add 11.67gBpy Dissolve in 30mL NMP, and inject the Bpy solution into the reaction flask with a syringe. After equilibrating at room temperature for 20min, raise the temperature of the system to 120°C, react for 24h under an argon atmosphere, and then cool to room temperature. Precipitate in deionized water, then dissolve with NMP again, wash with deionized water again, repeat the solvent-precipitation operation 3 times to remove Cu ions in the system...

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Abstract

The invention discloses a ferroelectric polymer with phosphorescence effect, and a preparation method thereof, and relates to a light-emitting ferroelectric field. According to the method, a triblock ferroelectric copolymer poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethene) (P(VDF-TrFE-CTFE) is synthesized by using poly(vinylidene fluoride-chlorotrifluoroethene) (P(VDF-CTFE) as a reaction raw material through an atom transfer radical chain reaction (ATRCP) method; and a vinyl carbazole monomer with phosphorescence effect is grafted on the molecular main chain of the P(VDF-TrFE-CTFE by using the CFFE unit in the molecular structure of the VDF-TrFE-CTFE as the active site for graft polymerization through an atom transfer radical synthesis method to form the ferroelectric polymer with phosphorescence effect. According to the present invention, by regulating the proportion of the CTFE units on the P(VDF-TrFE-CTFE), the grafting ratio of the vinyl carbazole monomer is indirectly regulated so as to achieve the controllability of the ferroelectric and phosphorescence property of the polymer; and the ferroelectric polymer with phosphorescence effect has good film forming property, and can be widely used in the fields of electroluminescence, flexible wearable devices and biochemical sensors.

Description

technical field [0001] The invention relates to the field of luminescent ferroelectricity, in particular to a ferroelectric polymer with phosphorescent effect and a preparation method thereof. Background technique [0002] Polyvinylidene fluoride-based copolymers have good ferroelectric, piezoelectric and dielectric properties. In recent years, research on functional modification of polyvinylidene fluoride-based copolymers has increased year by year. The Cl atoms on the CTFE units in poly(vinylidene fluoride-trifluoroethylene-trifluoroethylene) P(VDF-TrFE-CTFE) can be used as active sites for atom transfer radical polymerization (ATRP), which can be used to ·Grafting a class of functional compounds containing unsaturated bonds at sexual sites to achieve the special properties required by the material. Fangxiao Guan et al. (Macromolecules, 2011, 44(7): 2190-2199.) used P(VDF-TrFE-CTFE) and styrene as raw materials to synthesize grafted styrene monomer by atom transfer radic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F293/00C08F214/18C08F259/08C08F226/12
CPCC08F214/182C08F259/08C08F293/005C08F2438/01C08F226/12
Inventor 王一平李雄杰杨颖何亭睿胡悫睿陈朋
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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