Polyarylether resin containing carboxyl group and preparing method thereof

A polyarylene ether and carboxyl technology, applied in the field of polymers, can solve the problems of low glass transition temperature and need to improve mechanical properties, and achieve the advantages of simple preparation method, good flame retardancy and solubility, excellent temperature resistance and mechanical properties. Effect

Active Publication Date: 2016-07-06
芜湖万隆新材料有限公司
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  • Abstract
  • Description
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Problems solved by technology

Patent Publication No. CN1583827 reports a class of polyarylether materials containing carboxyl side groups. The polymer molecular chain has carboxyl side groups with aliphatic structure. The mechanical properties of the polymer obtained are also good, but vitrification The transition temperature is lower than 200°C
Professor Jian Xigao et al. conducted research on toughening epoxy resin with carboxyl-heterocyclic copolyaryl ether, and found that adding 10 phr of polyaryl ether resin modified epoxy resin has the best toughening effect, and the polyaryl ether resin used has higher glass transition temperature, but the mechanical properties still need to be improved

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  • Polyarylether resin containing carboxyl group and preparing method thereof
  • Polyarylether resin containing carboxyl group and preparing method thereof
  • Polyarylether resin containing carboxyl group and preparing method thereof

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preparation example Construction

[0046] The present invention also provides a kind of preparation method of carboxyl-containing polyarylether resin of the present invention, comprising:

[0047] The phenolphthalein monomer, HO-Ar 2 -OH, bis(4-halophenyl)phenylphosphine oxide, X-Ar 1 -X and the solvent are mixed and reacted to obtain carboxyl-containing polyarylether resin;

[0048] Among them, the Ar 1 C5-C50 unsubstituted arylene group, C5-C50 substituted arylene group, C5-C50 carbonyl-containing arylene group, C5-C50 sulfone-containing arylene group;

[0049] The Ar 2 C5-C50 unsubstituted arylene group, C5-C50 substituted arylene group, C5-C50 carbonyl-containing arylene group, C5-C50 sulfone-containing arylene group;

[0050] X is halogen.

[0051] In the preparation method of the present invention, the present invention has no special requirements on the source of raw materials, wherein:

[0052] The HO-Ar 2 -OH, the Ar 2 It is preferably C6-C30 unsubstituted arylene group, C6-C30 substituted aryl...

Embodiment 1

[0066] Add 3.2034 grams (0.01mol) of phenolphthalein and 3.1427 grams (0.01mol) of bis(4-fluorophenyl)phenyl to a 100ml three-necked flask equipped with a nitrogen conduit, a condenser, a water separator, a thermometer and a mechanical stirrer. Phosphine oxide, 2.0732 g (0.015 mol) of anhydrous potassium carbonate, 18 ml of sulfolane and 20 ml of toluene. Raise the temperature to 130°C for azeotropic dehydration. After about 3 hours, distill all the toluene off, continue to heat up to 220°C for 4 hours, and precipitate the polymer solution in a mixed solvent with a volume ratio of ethanol and concentrated hydrochloric acid of 10:1. Use distilled water to boil and wash repeatedly to remove inorganic salts and solvents, and obtain carboxyl-containing polyarylether resin after drying.

[0067] Structural identification of the obtained polymer was carried out, the results are shown in figure 1 and figure 2 , figure 1 Infrared spectra of carboxyl-containing polyarylether resins...

Embodiment 2

[0073] Add 3.2034 grams (0.01mol) of phenolphthalein and 1.5714 grams (0.005mol) of bis(4-fluorophenyl)phenyl to a 100ml three-necked flask equipped with a nitrogen conduit, a condenser, a water separator, a thermometer and a mechanical stirrer. Phosphine oxide, 1.091 g (0.005 mol) 4,4'-difluorobenzophenone, 2.7642 g (0.02 mol) anhydrous potassium carbonate, 16 ml dimethylsulfoxide and 20 ml toluene. Raise the temperature to 130°C, azeotropic dehydration, after about 2 hours, distill all the toluene, continue to heat up to 175°C for 8 hours, put the polymer solution in a mixed solvent of deionized water and concentrated hydrochloric acid with a volume ratio of 10:1 Precipitate, wash with distilled water repeatedly to remove inorganic salts and solvents, and obtain carboxyl-containing polyarylether resin after drying.

[0074] Structural identification of the obtained polymer was carried out, the results are shown in figure 1 and Figure 4 , figure 1 Infrared spectra of carb...

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Abstract

The invention provides polyarylether resin containing a carboxyl group and a preparing method thereof. The polyarylether resin containing the carboxyl group has a structure shown in the formula (I), a non-coplanar triphenyl phosphine oxide structure is introduced into a main chain, a side chain of the resin is modified with a phenyl group containing the carboxyl group, and the obtained resin is excellent in temperature resistance and mechanical property and good in flame retardance and solubility property. In addition, phenolphthalin as well as other commercialized bisphenol monomers,and bis(4-halogenated phenyl) phenyl phosphine oxide as well as other dihalogen monomers are subjected to homopolymerization or copolymerization reaction in organic solvent to prepare the polyarylether resin. The raw materials are wide in source, reaction conditions are simple, and industrial production is easy to realize.

Description

technical field [0001] The invention relates to the field of polymers, in particular to a carboxyl group-containing polyarylene ether resin and a preparation method thereof. Background technique [0002] Polyarylene ether resin plays an important role in the field of high temperature resistance. It is a kind of engineering plastic with excellent comprehensive properties. It is widely used in aerospace, electronic appliances, automobile industry and civil high-tech fields. However, as people's requirements for material temperature resistance are getting higher and higher, traditional polyarylene ether resins can no longer meet the development of science and technology. In recent years, it has been found that in the molecular structure of traditional polyarylene ether resins, the heat resistance of polyarylene ether resins can be further improved by introducing rigid structural units such as sulfone groups, cyano groups, and carbonyl groups. Introducing the monomer of special...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/40
CPCC08G65/4006C08G65/4068C08G2650/38C08G2650/64
Inventor 周光远王红华张兴迪杨玉王志鹏
Owner 芜湖万隆新材料有限公司
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