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O-phthalodinitrile end-blocked soluble polyarylether resin with phthalazinone structure and condensate and preparation method thereof

A technology of phthalonitrile and naphthalenone biphenyl, which is applied in the field of polymer material synthesis, can solve the problems that the preparation method is unknown and does not involve the end-capped soluble polymer containing phthalonitrile group, etc. The effect of good molding performance and wide application prospects

Active Publication Date: 2010-01-06
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, none of the above-mentioned inventions relates to the research on phthalonitrile-containing end-capped soluble polymers
Regarding soluble phthalonitrile-based polymers, especially double-terminated phthalonitrile-containing phthalazinone biphenyl structure soluble resins, cured products and preparation methods thereof, there are no relevant patent technical reports, nor are there domestic appearing in public publications

Method used

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  • O-phthalodinitrile end-blocked soluble polyarylether resin with phthalazinone structure and condensate and preparation method thereof
  • O-phthalodinitrile end-blocked soluble polyarylether resin with phthalazinone structure and condensate and preparation method thereof
  • O-phthalodinitrile end-blocked soluble polyarylether resin with phthalazinone structure and condensate and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Example 1 Preparation and performance of polyarylether (nitrile sulfone ketone) and cured product containing double-terminated phthalonitrile and phthalazinone biphenyl structure

[0047] Add 2.5 parts of 4-(4-hydroxy-phenyl)-2H-phthalazin-1-one, 2.6 parts Anhydrous potassium carbonate, 2,6-dichlorobenzonitrile, 4,4'-dichlorodiphenyl sulfone, 4,4'-dichlorobenzophenone or their mixtures total 2.0 parts, toluene and dimethyl sulfoxide . Under nitrogen atmosphere, after azeotropic reflux of toluene with water, the temperature was raised to 180°C for about 3 hours, and then cooled down. Then add 1.0 parts of 4-nitrophthalonitrile, react at room temperature for 6 hours, and then raise the temperature to 80°C for 12 hours. Under high-speed stirring of the polymer solution, boiling water is used as a precipitating agent, the polymer is subjected to sedimentation, deionized water repeatedly washing and drying, and vacuum drying to obtain double-terminated phthalonitrile and p...

Embodiment 2

[0057] Example 2 Preparation and properties of polyarylene sulfide (nitrile sulfone ketone) and cured product containing double-ended double-ended phthalonitrile and phthalazinone biphenyl structure

[0058] In a dry 100mL three-necked flask equipped with mechanical stirring, reflux condenser, water separator and air duct, add 4-(4-hydroxy-phenyl)-2H-phthalazin-1-one and 4,4- A total of 2.5 parts of dihydroxydiphenyl sulfide, 2.6 parts of anhydrous potassium carbonate, 2,6-dichlorobenzonitrile, 4,4'-dichlorodiphenyl sulfone, 4,4'-dichlorobenzophenone or their The mixture was 2.0 parts total, toluene and dimethyl sulfoxide. Under nitrogen atmosphere, after azeotropic reflux of toluene with water, the temperature was raised to 180°C for about 3 hours, and then cooled down. Then add 1.0 parts of 4-nitrophthalonitrile, react at room temperature for 6 hours, and then raise the temperature to 80°C for 12 hours. Under high-speed stirring of the polymer solution, boiling water is us...

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Abstract

The invention relates to an o-phthalodinitrile end-blocked soluble polyarylether resin with phthalazinone structure and a condensate and a preparation method thereof, belonging to the high polymer material synthesis field. By adopting 4-nitrophthalonitrile as blocking agent, o-phthalodinitrile end-blocked soluble polyarylether resin with phthalazinone structure is prepared by solution nucleophilic substitution reaction. The method has simple process and easy operation. The polyarylether resin shows good solubility in all the common solvents, has better curing activity, and can be shaped in various ways. The condensate with stable size and high thermostability of the o-phthalodinitrile end-blocked soluble polyarylether resin can be obtained by procuring at 150-300 DEG C and annealing at 350-400 DEG C in the present of aromatic diamine. The o-phthalodinitrile end-blocked soluble polyarylether resin of the invention can be used to prepare coatings, insulating varnish, adhesives, films and high-performance composite materials, thus having wide application prospect.

Description

technical field [0001] The invention belongs to the field of polymer material synthesis, and in particular relates to a phthalonitrile-terminated phthalazinone-containing biphenyl structure-soluble polyarylether resin, a cured product and a preparation method thereof. Background technique [0002] Polyarylene ether is an important class of thermoplastic polymer materials with excellent comprehensive properties, but most of the commercialized varieties are fully aromatic crystal or semi-crystalline structure, so the solubility is not good, and the processability is poor. For example, polyether ether ketone PEEK, which was first successfully developed by the British ICI, can only be melt-processed because it is insoluble in most organic solvents. Although the thermal decomposition temperature of polyarylether materials is mostly above 500°C, the glass transition temperature and melting point are relatively low, so the use temperature is relatively low. For example, the glass ...

Claims

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Application Information

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IPC IPC(8): C08G65/48C08G65/40
Inventor 蹇锡高刘程喻桂朋王锦艳廖功雄张守海
Owner DALIAN UNIV OF TECH
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