Preparation method of diallyl containing quaternary ammonium salt modified montmorillonoid

A bisallyl, montmorillonite technology, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., to achieve the effect of high positive charge density

Inactive Publication Date: 2009-12-09
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are few reports on the systematic research on the modification of

Method used

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  • Preparation method of diallyl containing quaternary ammonium salt modified montmorillonoid
  • Preparation method of diallyl containing quaternary ammonium salt modified montmorillonoid

Examples

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Embodiment 1

[0015] Example 1, add 100g of deionized water into a 250mL three-neck flask, slowly add 3.00g of montmorillonite, and stir at a slow speed for 20min; Diallylmethyl dodecyl ammonium bromide monomer, stirred for 15min, heated up to 75°C, after the temperature became constant, increased stirring speed, reacted for 6h, then suction filtered, washed with water several times, put in a vacuum oven at 80°C Dry for 24 hours to obtain bisallylmethyl dodecyl ammonium bromide modified montmorillonite.

Embodiment 2

[0016] Example 2, add 100g of deionized water into a 250mL three-necked flask, slowly add 2.00g of montmorillonite, and stir at a slow speed for 15min; Diallylmethyltetradecyl ammonium bromide monomer, stirred for 10min, heated up to 80°C, after the temperature was constant, increased the stirring speed, reacted for 5h, then filtered with suction, washed with water for several times, and placed in a vacuum oven at 80°C Dry for 24 hours to obtain bisallylmethyltetradecylammonium bromide modified montmorillonite.

Embodiment 3

[0017] Example 3, add 100g of deionized water into a 250mL three-necked flask, slowly add 6.00g of montmorillonite, and stir at a slow speed for 30min; Diallyl methyl hexadecyl ammonium bromide monomer, stir for 20min, heat up to 90°C, after the temperature is constant, increase the stirring speed, react for 4h, then filter with suction, wash with water several times, put in a vacuum oven at 80°C Dry for 24 hours to obtain bisallyl methyl hexadecyl ammonium bromide modified montmorillonite.

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Abstract

The invention relates to a preparation method of diallyl containing quaternary ammonium salt modified montmorillonoid, in particular to a method of diallyl methyl alkyl quaternary ammonium salt monomer modified montmorillonoid capable of cyclopolymerization. Currently, systemic study on diallyl methyl alkyl quaternary ammonium salt monomer modified montmorillonoid is rarely reported. The invention adopts diallyl containing quaternary ammonium salt as intercalation agent of montmorillonoid, the monomer is efficient and non-toxic and has high positive charge density, intercalation reaction can occur owning to cation performance thereof, cyclopolymerization can occur between montmorillonoid layers to generate polymer containing five-membered ring as the monomer contains non-conjugated diene bond. The monomer modified montmorillonoid provides a new method for preparing polymer base montmorillonoid nano composite material by intercalation cyclopolymerization between montmorillonoid layers.

Description

Technical field: [0001] The invention relates to a method for preparing montmorillonite modified with diallyl quaternary ammonium salt, in particular to a method for modifying montmorillonite with diallyl methyl alkyl quaternary ammonium salt monomer capable of cyclopolymerization . Background technique: [0002] In the process of preparing polymer-based montmorillonite nanocomposites, since the interlayer spacing of montmorillonite is only about 1nm, and the interlayer chemical microenvironment is hydrophilic and oil-repellent, it is not conducive to the intercalation of monomers or macromolecules. If the montmorillonite is not modified in advance and the montmorillonite is directly mixed with the polymer, or the monomer is polymerized in the presence of the montmorillonite, it is not easy to obtain a polymer / montmorillonite nanocomposite material, and usually only the traditional one can be obtained. filled polymer. In this case, due to the weak force between the organic...

Claims

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Application Information

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IPC IPC(8): C01B33/44
Inventor 高党鸽马建中吕斌郭海清
Owner SHAANXI UNIV OF SCI & TECH
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