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Heteroatom-rich phosphonamidine polymer and multi-component polymerization method and application for preparing the polymer
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A polymerization method and polymer technology, which can be used in the analysis of materials, material excitation analysis, material analysis by optical means, etc., can solve the problem of rare phosphorus-containing polymers, and achieve unique application value, high reaction efficiency and high yield. Effect
Active Publication Date: 2019-05-14
SOUTH CHINA UNIV OF TECH
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[0003] There are various reactions for the synthesis of phosphorus-containing polymers, but there are few reports on the preparation of phosphorus-containing polymers rich in various heteroatoms by multi-component polymerization
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Embodiment 1
[0050] A multi-component polymerization method of alkyne, sulfonyl azide and phosphinoimine for preparing heteroatom-rich phosphonamidine polymers, the specific preparation steps are as follows:
[0051] (1) Under nitrogen protection, 38mg of diethynyl tetraphenylethylene monomer 24 38 mg disulfonyl azide monomer 25 88 mg tetraphenylphosphine amidomonomer 26 Add 4 mg of cuprous iodide to 1 mL of tetrahydrofuran to dissolve, add 20 mg of triethylamine dropwise under stirring, and react at room temperature for 12 hours under stirring;
[0052] (2) After the reaction is completed, dilute the reaction mother liquor with 2 mL of chloroform solvent, then filter it through absorbent cotton and add it dropwise to 100 mL of methanol for precipitation, collect the precipitate, and dry it at 40° C. to constant weight to obtain a polymer.
[0053] The diethynyltetraphenylethylene monomer 24 in this example was prepared according to the method disclosed in the literature [Polym.Chem.2...
Embodiment 2
[0062] A multi-component polymerization method of alkyne, sulfonyl azide and phosphinimine for preparing atom-rich phosphonamidine polymers, the specific preparation steps are as follows:
[0063] (1) Under nitrogen protection, 45.6mg of diyne monomer 27 38 mg disulfonyl azide monomer 25 88 mg tetraphenylphosphine amidomonomer 26 Add 4 mg of cuprous iodide to 1 mL of tetrahydrofuran to dissolve, add 20 mg of triethylamine dropwise under stirring, and react at room temperature for 12 hours under stirring;
[0064] (2) After the reaction is completed, dilute the reaction mother liquor with 2 mL of chloroform, filter it through absorbent cotton and add it dropwise into 100 mL of methanol for precipitation, collect the precipitate, and dry it at 40°C to constant weight to obtain polymer P2.
[0065] The structural formula of the phosphonamidine polymer P2 of the present embodiment:
[0066]
[0067] The polymer P2 of this example has a yield of 91%, a weight average molec...
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Abstract
The invention belongs to the technical field of organic chemistry, and discloses a phosphonamidine polymer rich in heteroatoms and a multi-component polymerization method for preparing the phosphonamidine polymer and application of the polymer. The method comprises the following steps: (1) polymerizing terminal diacetylene monomers, terminal disulfonyl azide monomers and phosphinimine monomers by adopting an organic solvent as a reaction medium under the protection of inert gases and in the existence of a catalyst to obtain a crude product; and (2) after the reaction is completed, dissolving the crude product by using the solvent, diluting, filtering, dropwise adding the filtrate into a precipitating agent, precipitating, collecting precipitates, drying until the weight is constant, and obtaining the phosphonamidine polymer. The polymerization method is carried out at normal temperature, the reaction is efficient, the atom economy is high, and the product is easy to separate; and the prepared phosphonamidine polymer is rich in heteroatoms such as N, O, S, P and the like, has particular photovoltaic performance and has unique application value in the biological, chemical fluorescent detection and platinum metal ion detection fields.
Description
technical field [0001] The invention belongs to the technical field of organic chemistry, and relates to a method for preparing a heteroatom-rich phosphonamidine polymer, in particular to a heteroatom-rich phosphonamidine polymer and a method for preparing the phosphonamidine polymer. Component polymerization methods and applications. Background technique [0002] Introducing O, N, S, P and other heteroatoms into the polymer molecular chain can make the polymer have some special properties. For example, the addition of sulfur can make the polymer have a higher refractive index. Introducing heteroatoms into conductive polymers can also change the photoelectric properties of the material. At the same time, some heteroatoms are introduced into the molecular chain to form metal coordination polymers. Some heteroatom-containing polymers can coordinate with metal ions, so that materials for metal ion detection and enrichment can be developed. Phosphorus atoms in polymers can c...
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