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Supramolecular polymer gel based on pillar[5]arene, and synthesis and application thereof

A technology of supramolecular polymers and aromatic hydrocarbons, applied in the field of fluorescence detection, can solve problems affecting human health and environmental pollution

Active Publication Date: 2019-07-26
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Iron ions and copper ions are essential trace elements for the human body, but excessive amounts of these ions not only affect human health, but also cause serious pollution to the environment

Method used

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  • Supramolecular polymer gel based on pillar[5]arene, and synthesis and application thereof
  • Supramolecular polymer gel based on pillar[5]arene, and synthesis and application thereof
  • Supramolecular polymer gel based on pillar[5]arene, and synthesis and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1, the preparation of MTP5-HB gel

[0035] Weigh 0.0086 g (9.6 × 10 -6mol) MTP5 and 0.0014 g (4.8 × 10 -6 mol) HB in the gel, to which was added 200 µL DMSO-H 2 O (35% water content) solution, fully heated to dissolve it completely, and then cooled to room temperature to form a 50 mg / mL blue-white fluorescent gel MTP5-HB.

Embodiment 2

[0036] Embodiment 2, the recognition of metal ions by MTP5-HB gel

[0037] Pipette 5 mg organogel MTP5-HB into a series of drip plates, add 10 µLCa 2+ , Mg 2+ , Pb 2+ , Ni 2 + ,Co 2+ , Hg 2+ , Zn 2+ , Cd 2+ , Ag + , Cu 2+ , Cr 3+ , Al 3+ , Ba 2+ , La 3+ , Eu 3+ , Fe 3+ aqueous solution (0.1M); if the fluorescence of the organogel is quenched, it indicates that Fe may be added 3+ or Cu 2+ , if the organogel fluorescence does not change significantly, it means that other metal ions are added.

Embodiment 3

[0038] Embodiment 3, MTP5-HB xerogel powder detects acid gas

[0039] Weigh 5 mg of the solid powder of MTP5-HB xerogel on a series of glass slides, and then place the glass slides in gas-collecting bottles containing acetic acid, hydrochloric acid, hydrogen sulfide, trimethylamine, and ammonia, and observe Fluorescence changes of gel MTP5-HB. If the fluorescence of the MTP5-HB xerogel powder decreases significantly, the gas in the gas collection bottle is acid gas (acetic acid, hydrochloric acid, hydrogen sulfide gas), if the fluorescence of the MTP5-HB xerogel powder remains unchanged, the gas collection bottle The gas in the bottle is an alkaline gas (trimethylamine or ammonia).

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Abstract

The invention provides supramolecular polymer gel based on pillar[5]arene. The supramolecular polymer gel has the advantages that the pillar[5]arene modified by sulfo-acethydrazide serves as a main body, 2,2'-(1,6-hexyl)-benzimidazole serves as an object, the main body and the object are completely dissolved and self-assembled in a DMSO-H2O solution and then cooled to room temperature to form theorganic gel with bluish-white aggregation induced emission, the aggregation-state fluorescence quenching is achieved after coordination between the gel and iron or copper ions, and the two types of metal ions are detected highly sensitively; solid powder obtained after drying of the supramolecular polymer gel emits strong white fluorescence, and can be directly used for quickly detecting acid gases, so that a possibility is provided for development and application of high-performance solid gas sensors.

Description

technical field [0001] The present invention relates to a supramolecular polymer gel, in particular to a supramolecular polymer gel based on pillar [5] arene; the present invention also relates to the supramolecular polymer gel used as a fluorescent sensor molecule in the fluorescent recognition metal Ions and rapid detection of H 2 The application of acid gas such as S belongs to the technical field of fluorescence detection. Background technique [0002] Supramolecular polymers are the result of the combination of supramolecular chemistry and polymer chemistry, and are defined as polymer systems that extend beyond molecules. Supramolecular polymers are connected by various non-covalent interactions, including hydrogen bonding, metal coordination, π-π stacking, and host-guest interactions, which not only make them superior to traditional covalent bonds The advantages of polymers, and has many unique properties. In recent years, new supramolecular polymers with aggregatio...

Claims

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Application Information

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IPC IPC(8): C09K11/06C08G83/00G01N21/64
CPCC08G83/008C09K11/06C09K2211/1425C09K2211/1466G01N21/643G01N2021/6432G01N2021/6443
Inventor 姚虹周琦王姣阚晓彤魏太保张有明林奇
Owner NORTHWEST NORMAL UNIVERSITY
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