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Carboxyl side group-containing hyperbranched polyarylene ether copolymer and preparation method and application thereof

A polyarylether and copolymer technology, which is applied in the field of hyperbranched polyarylether ketone copolymer containing carboxyl side groups and its preparation, can solve the problems of poor processability and poor solvent resistance of polyarylether, and achieve processability and Effect of improved solubility, low melt viscosity, and good heat resistance

Active Publication Date: 2019-11-08
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of poor solvent resistance and poor processability of polyarylethers in the prior art, the invention provides a preparation method of hyperbranched polyaryletherketone copolymers containing carboxyl side groups

Method used

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  • Carboxyl side group-containing hyperbranched polyarylene ether copolymer and preparation method and application thereof
  • Carboxyl side group-containing hyperbranched polyarylene ether copolymer and preparation method and application thereof
  • Carboxyl side group-containing hyperbranched polyarylene ether copolymer and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Add successively 0.9837g (0.0078mol) phloroglucinol, 5.8623g (0.0183mol) phenolphthalein, 6.546g (0.03mol) 4,4'-difluorobenzophenone, 12.4389g (0.09mol) anhydrous potassium carbonate, 19ml dimethyl sulfoxide and 21ml toluene, heated to 140°C, after 2 hours, continued to heat up to 175°C for 4 hours. Diluted with N,N-dimethylformamide, precipitated in ethanol, washed repeatedly with distilled water to remove inorganic salts, and dried to obtain a flocculent product. The infrared spectrum of the obtained product is shown in figure 1 ; The NMR spectrum of the resulting product is shown in figure 2 ; The GPC spectrogram of the resulting product is shown in image 3 .

Embodiment 2

[0037] Add 0.9837g (0.0078mol) phloroglucinol, 6.3388g (0.0183mol) 2',2"-dimethyl Phenolphthalein, 6.546g (0.03mol) 4,4'-difluorobenzophenone, 6.9105g (0.05mol) anhydrous potassium carbonate, 19ml dimethyl sulfoxide and 21ml toluene, heated to 125°C, azeotropic dehydration, After 4 hours, continue to heat up to 210 ° C for 4 hours, dilute with N,N-dimethylformamide, precipitate in ethanol, wash to remove inorganic salts, and dry to obtain a flocculent product.

Embodiment 3

[0039] Add 0.9837g (0.0078mol) phloroglucinol, 7.9158g (0.0183mol) 2',2"-diisopropyl Base-5',5"-dimethylphenolphthalein, 6.546g (0.03mol) 4,4'-difluorobenzophenone, 12.4389g (0.09mol) anhydrous potassium carbonate, 22ml dimethylsulfoxide and 24ml Toluene, heat up to 150°C, after 2 hours, continue to heat up to 180°C for 7 hours. Diluted with N,N-dimethylformamide, precipitated in ethanol, washed repeatedly with distilled water to remove inorganic salts, and dried to obtain a flocculent product.

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Abstract

The invention provides a copolymer of hyperbranched polyarylether containing side carboxyl groups, a preparation method and application thereof. The copolymer is prepared by the following steps of: adopting phenolphthalin, a derivative containing substituent groups and polyphenol monomer to carry out copolymerization reaction with dihalo monomer in a polar solvent under the catalysis of alkaline.The preparation method provided by the invention can realize adjustment of the branching degree of the hyperbranched polyarylether containing the side carboxyl groups by the proportion of the polyphenol monomer and bisphenol, is beneficial to adjusting and controlling the crosslinking density in the modifying process of epoxy resin, and not only can be applied to reinforcing and toughening the epoxy resin and cyanate ester resin, but also has important practical value and development value in the aspects of preparing membrane separating materials, coatings, insulating varnish materials and bonding type rare-earth coordination fluorescent materials and the like.

Description

technical field [0001] The invention belongs to the field of polymer materials, and relates to a hyperbranched polyaryletherketone copolymer containing carboxyl side groups, a preparation method and application thereof. Background technique [0002] Polyarylether (polyarylether ketone, polyarylether ketone ketone, polyarylether sulfone) is a kind of engineering plastic material with excellent comprehensive performance. Widely used, but as people have higher and higher requirements for material use and processing performance, traditional polyarylether materials can no longer meet the needs of scientific and technological development. Traditional bisphenol A polyarylether sulfone and polyarylether Ketones have a completely amorphous structure and are soluble in commonly used organic solvents, but their glass transition temperature is low, resulting in a low use temperature. Polyether ketone ketone was first synthesized in 1980 in the British ICI company. It is a semi-crystall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/40C08G75/23C08L63/00C08L79/04C08L71/12C08L81/06
CPCC08G65/4031C08G65/405C08G75/23C08G2650/30C08G2650/40C08L63/00C08L2205/03C08L2205/06C08L2312/00C08L79/04C08L71/12C08L81/06C08G65/4012C08G65/4037C09B69/103C08L71/00
Inventor 王忠刚罗世文
Owner DALIAN UNIV OF TECH
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