Supramolecular polymer as well as preparation method and application thereof

A technology of supramolecular polymers and compounds, applied in the field of supramolecular polymer light-emitting materials

Active Publication Date: 2020-11-03
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research on the golden-yellow luminescent crown ether host-guest supramolecular polymer materials with warm color has not been reported yet.

Method used

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  • Supramolecular polymer as well as preparation method and application thereof
  • Supramolecular polymer as well as preparation method and application thereof
  • Supramolecular polymer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] (1) Synthesis of host compound H:

[0072] a) Synthesis of Compound 1

[0073] In a 50 mL two-necked flask, add hexaethylene glycol (2.54 g, 8.8 mmol), p-toluenesulfonyl chloride (4.05 g, 21.2 mmol), 10 mg of 4-dimethylaminopyridine, and 20 mL of dichloromethane, and stir to dissolve. Under the ice-salt bath, triethylamine (4.37 g, 43.2 mmol) was slowly added dropwise with a constant pressure dropping funnel, and stirred at room temperature for 12 h after the dropwise addition was completed. After the TLC spot plate reaction is complete, stop stirring and post-treatment. Wash with 50mL of 1M hydrochloric acid aqueous solution, saturated sodium bicarbonate aqueous solution (50mL×1), saturated sodium chloride aqueous solution (50mL×1), dry over anhydrous sodium sulfate, filter, rotary evaporate, and wet load. Column chromatography eluent (eluent PE:DCM=5:1→3:1→1:1) gave 4.00 g of compound 1 as a colorless viscous liquid with a yield of 75%.

[0074] b) Synthesis of Com...

Embodiment 2～6

[0097] The synthesis of Compound H and Compound G is the same as in Example 1. Preparation of supramolecular polymer: Mix the host compound H and the secondary ammonium salt guest G in molar amounts of 1:2.0, 1:2.1, 1:2.3, 1:2.4, 1:2.5 equivalents, dissolve in chloroform: acetonitrile by volume ratio In a 1:1 solvent, sonicate for 10 minutes and let stand for 24 hours. The obtained material is difficult to process, and the luminous effect is not as good as that prepared in Example 1.

Embodiment 7～8

[0099] The synthesis of Compound H and Compound G is the same as in Example 1. Preparation of supramolecular polymers: The host compound H and the secondary ammonium salt guest G were mixed at a molar ratio of 1:1 equivalent, dissolved in a solvent with a volume ratio of 1:1 of chloroform:acetonitrile, ultrasonicated for 10 minutes, and left to stand for 24 hours. When the concentrations of compounds H and G are controlled at 50mmol / L and 600mmol / L, it is verified that the supramolecular polymer materials prepared with higher concentrations have better luminescent effects.

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Abstract

The invention discloses a supramolecular polymer as well as a preparation method and application thereof. The supramolecular polymer is specifically a golden yellow luminous host-guest supramolecularpolymer, and is formed by assembling a host compound H and a secondary ammonium salt guest G through host-guest non-covalent interaction. The preparation method comprises the following steps: equivalently mixing a host compound H and a secondary ammonium salt object G according to a molar ratio of 0.9:1-1:1.2, dissolving the raw materials in a mixed solvent of chloroform and acetonitrile, carryingout ultrasonic treatment and standing treatment, and extracting filamentous fibers from the formed viscous fluid, wherein the fibers exhibiting good warm-tone golden yellow luminescence under an ultraviolet lamp. The formed warm-hue light-emitting supramolecular polymer can be applied to fine light-emitting materials, and the supramolecular polymer not only can emit golden yellow light, but alsohas self-repairing capacity due to dynamic reversibility of host-guest interaction and have good application prospects.

Description

technical field [0001] The invention belongs to the field of supramolecular polymer luminescent materials, and in particular relates to a supramolecular polymer and its preparation method and application. Background technique [0002] Supramolecular polymers are a new class of polymer materials. Unlike traditional polymers whose backbones are all composed of covalent bonds, supramolecular polymers are "dynamic polymers" formed by the complexation of monomeric small molecules through non-covalent bonds. Non-covalent bonds endow supramolecular polymers with many "smart" properties, such as dynamic reversibility, stimuli responsiveness to external environments, easy recycling processability, and self-healing properties. Common non-covalent bonds include host-guest molecular recognition, π-π stacking interactions, metal-coordination interactions, and multiple hydrogen bonding interactions. Among them, the host-guest interaction based on macrocyclic molecules has attracted wide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00D01F6/96C09K11/06G01N21/64C09D11/50C09D11/30
CPCC08G83/008D01F6/96C09K11/06G01N21/6428C09D11/50C09D11/30C09K2211/145C09K2211/1416G01N2021/6432
Inventor 汪婕肖唐鑫吴可慧李正义孙小强
Owner CHANGZHOU UNIV
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