Novel water-soluble polymer capable of selectively recognizing mercury ion as well as preparation method and application thereof

A water-soluble polymer, mercury ion technology, applied in the application field of selective identification of mercury ions, can solve the problems of complex synthesis, cumbersome detection procedures, low solubility of porphyrin, etc., and achieves simple polymerization method, easy subsequent treatment process, Simple and convenient method

Active Publication Date: 2015-05-20
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But its shortcoming is that the solubility of porphyrin in water is very little, is difficult to be applied to aqueous solution system, usually needs to add a certain amount of organic reagent (referring to Wing Hong Chana; Rong Hua Yang; Ke Min Wang; Analytica Chimica Acta,2001,444,261-269 ), or require the introduction of surfactants, which would complicate the synthesis and cumbersome detection procedures [see (a) Luisa S. Dolci; Ettore Marzocchi; Marco Montalti; Luca Prodi; Donato Monti; Corrado Di Natale; Arnaldo D' Amico;Roberto Paolesse;Biosensors and Bioelectronics,2006,22,399–404(b)Zhen Fang;Bin Liu Tetrahedron Letters,2008,49,2311–2315]
And water-soluble porphyrins, such as porphyrin tetraphenylsulfonate (TPPS), can solve the problem of water solubility, but can only selectively detect aluminum ions and tin ions (see CN102183480A)

Method used

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  • Novel water-soluble polymer capable of selectively recognizing mercury ion as well as preparation method and application thereof
  • Novel water-soluble polymer capable of selectively recognizing mercury ion as well as preparation method and application thereof
  • Novel water-soluble polymer capable of selectively recognizing mercury ion as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A kind of synthetic method of novel water-soluble polymer, comprises the following steps:

[0049] In a 15mL reaction bottle, add tetraphenylporphyrin monomer AOTPP (18.7mg), water-soluble acrylamide monomer AM (177.7mg), initiator AIBN (4.2mg), and 7mL toluene, stir to mix Uniform; Nitrogen gas was introduced for 20 minutes to remove oxygen in the reaction system; after degassing, the reaction bottle was sealed and placed in a constant temperature water bath for polymerization. The polymerization temperature was 60°C and the polymerization time was 12 hours.

[0050] After the polymerization, the reaction system was added dropwise into 200 mL of acetone and methanol mixed solvent under rapid stirring. After standing still for 10 min, the supernatant was poured out, and the remaining mixture was suction-filtered to obtain a powdery filter cake. The obtained solid was redissolved in a small amount of pure water, and the above-mentioned sedimentation process was repeated...

Embodiment 2

[0054] Same as Example 1, except that the initiator is azobisisoheptanonitrile (V-65).

Embodiment 3

[0056] Same as Example 1, except that the initiator is azobisisopropylimidazoline (VA-061).

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Abstract

The invention discloses a novel water-soluble polymer capable of selectively recognizing mercury ion; the structural formula of the novel water-soluble polymer is as shown in the specification, wherein R1 is hydrogen or alkyl; R2 is hydrogen, alkyl or hydroxyalkyl; the molecular weight is 1.6*10<4> to 5.5*10<6> g / mol; and the ratio of m to n is (100-200):1. The invention further discloses a synthetic method of the polymer. The novel water-soluble polymer is prepared by copolymerizing a tetraphenyl porphyrin monomer AOTPP and an acrylamide monomer through radical polymerization reaction. The invention further discloses application of the polymer. The polymer is capable of highly selectively detecting mercury ion in aqueous solution through a common ultraviolet-visible absorptionspectromtry and a steady-state fluorescence emission spectrometry.

Description

technical field [0001] The invention relates to a novel water-soluble polymer capable of selectively recognizing mercury ions and a preparation method thereof, as well as the application of the water-soluble polymer selectively recognizing mercury ions in aqueous solution. Background technique [0002] Mercury (Hg) is one of the most toxic heavy metal elements in the environment. Mercury has been widely used in industry and agriculture for many years, and its serious pollution has aroused strong concern of human beings. According to relevant data, in China, the long-term large-scale mining and smelting of minerals and the continuous discharge of coal-fired power generation industry have led to the increase of mercury content in the atmosphere, soil and water environment in most parts of China, which is harmful to human health and The environment has caused great harm. Mercury usually exists in three forms in nature: elemental mercury (Hg), inorganic mercury (Hg + , Hg 2+...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/56C08F220/54C08F220/58C08F220/34C08F2/06C08F4/04C08F4/34G01N21/78G01N21/33G01N21/64
Inventor 吴飞鹏汪雅洁
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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