Conjugated polymer with AIE properties and preparation method thereof

A technology of conjugated polymers and properties, applied in the field of conjugated polymers and their preparation, can solve the problems of poor polymer solubility, expensive experimental conditions, difficult processing, etc., achieve cheap film thickness, simple preparation, and good application prospects Effect

CN110615887AInactive Publication Date: 2019-12-27JIANGXI SCI & TECH NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-12-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a conjugated polymer with AIE properties and a preparation method thereof. The invention belongs to the technical field of AIE material preparation and performance research. According to the invention, a PVDF membrane is modified by adopting a blending method; then the PVDF membrane is prepared by copolymerization of alkali-treated PVDF and a sulfydryl polymer with zwitterions, wherein the zwitterionic polymer contains sulfydryl and can generate a sulfydryl-alkenyl click reaction with double bonds of the alkali-treated PVDF, so that the amphoteric polymer can stably exist on the membrane. Zwitterions are introduced into PVDF, so that the hydrophilicity, pollution resistance and the like of the PVDF membrane are greatly improved, and the PVDF membrane has a good application prospect.
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Description

technical field

[0001] The invention belongs to the technical field of preparation and performance research of AIE materials, and in particular relates to a conjugated polymer with AIE properties and a preparation method thereof. Background technique

[0002] Organic solid fluorescent materials have a wide range of applications in light-emitting devices, data recording and storage, sensors and other fields, thus attracting more and more people's attention. Among them, fluorescent materials based on conjugated polymers have a fluorescent signal amplification effect and are easy to form films, showing excellent performance in these application fields. In devices, organic solid fluorescent materials are often in the form of crystals or thin films. However, in the aggregated state of fluorescent molecules, due to the π-π overlap between molecules, the intensified dipole-dipole interaction between molecules causes the fluorescence quenching problem in the aggregated state. This ...

Examples

Embodiment 1

[0020] A conjugated polymer with AIE properties, the name of the conjugated polymer is poly(1,1,2,2-(tetra(4-9 hydrogen-carbazole)phenyl)ethylene) (PTCPE), Its chemical structural formula is as follows:

[0021]

[0022] A kind of preparation method of the above-mentioned conjugated polymer with AIE property, comprises the following steps:

[0023] (1) Determination of oxidation potential:

[0024] The working system is a three-electrode system, the Ag / AgCl electrode is the reference electrode, the platinum wire is the counter electrode, and the other platinum wire is the working electrode. The 0.4mmol / L TCPE monomer was studied in CH containing BFEE volume fraction 0%, 10%, 20%. 2 Cl 2 LSV in solution. When there is no electrolyte, TCPE in pure CH 2 Cl 2 It cannot be oxidized in solution (LSV is a straight line); when adding 10% and 20% BFEE, the oxidation onset potentials of TCPE are 0.60V and 0.54V, respectively. Obviously, after the introduction of BFEE, TCPE can...