CN109161014B - Preparation method of low-molecular-weight hydroxyl-terminated polyphenylene ether resin - Google Patents
Preparation method of low-molecular-weight hydroxyl-terminated polyphenylene ether resin Download PDFInfo
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- CN109161014B CN109161014B CN201810770627.3A CN201810770627A CN109161014B CN 109161014 B CN109161014 B CN 109161014B CN 201810770627 A CN201810770627 A CN 201810770627A CN 109161014 B CN109161014 B CN 109161014B
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- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/38—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols
- C08G65/44—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols by oxidation of phenols
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Abstract
The invention discloses a preparation method of low molecular weight hydroxyl-terminated polyphenyl ether resin, which comprises the following steps: the method comprises the steps of adding a catalyst into a mixed solvent of a good solvent and a poor solvent of the polyphenyl ether, introducing oxygen, adding a phenol monomer and an aromatic diphenol monomer, continuously introducing oxygen for reaction, pouring a reaction liquid into the poor solvent with the volume being 10 times that of the reaction liquid, and separating out a product to obtain the low-molecular-weight double-end hydroxyl polyphenyl ether.
Description
Technical Field
The invention belongs to the field of synthesis of high polymer materials, and particularly relates to a preparation method of low-molecular-weight hydroxyl-terminated polyphenylene ether resin.
Background
In recent years, with the continuous development of the information-based industry, the requirements for signal transmission speed and transmission loss are higher and higher, the most widely applied matrix resin in the manufacturing industry of the traditional copper-clad plate is epoxy resin, and because the size stability is poor when the resin is used at a high temperature and the dielectric constant is too high in a high-frequency range, the traditional epoxy resin cannot meet the requirements of the technical development of products in the electronic industry, so that the development of the copper-clad plate with low dielectric constant and dielectric loss becomes one of hot spots of research of various copper-clad plate manufacturers.
Polyphenyl ether resin is one of five general-purpose plastics, has good mechanical property, electrical insulation property, heat resistance, flame retardance, water resistance and chemical stability, and becomes a preferred matrix resin of a high-performance copper-clad plate, but the traditional polyphenyl ether has the defects of low glass transition temperature, large melt viscosity, poor fluidity and the like.
Chinese patent CN105199097A discloses a preparation method of polyphenol hydroxyl polyphenylene ether, which is mainly characterized in that the polyphenol hydroxyl polyphenylene ether is synthesized by copolymerizing phenol monomers in a good solvent of the polyphenylene ether by using a copper complex amine catalyst, and the polyphenol hydroxyl polyphenylene ether is obtained by reduced pressure distillation. Because the proportion of the aromatic diphenol added in the reaction process is too small, the reaction product is impure, monohydroxy polyphenylene oxide is easy to generate, and the molecular weight is too large, thereby limiting the application range of the monohydroxy polyphenylene oxide.
Chinese patent CN102002159A discloses a method for preparing polyphenylene ether, which mainly comprises synthesizing molecular sieve supported metal ions and amine complexes as solid catalysts to improve the water resistance of the catalysts, and oxidatively coupling monomeric phenols in organic solvents to prepare polyphenylene ether, but the preparation of molecular sieve supported metal ions and amine complexes is complex and difficult to carry out industrial production.
Chinese patent CN104231259A discloses a preparation method of poly-functional group polyphenylene ether resin, which mainly utilizes redistribution of polyphenylene ether resin to prepare low molecular weight polyphenylene ether, uses a large amount of peroxide initiator and phase transfer catalyst in the reaction process, and has complex post-treatment procedure, thereby improving the industrial cost and being not beneficial to industrial production.
Disclosure of Invention
In view of the above, the invention provides a preparation method of a low molecular weight hydroxyl-terminated polyphenylene ether resin, which is to prepare the low molecular weight hydroxyl-terminated polyphenylene ether in a mixed solution of a good solvent and a poor solvent of the polyphenylene ether, and adopts the following technical scheme:
the preparation method of the low molecular weight hydroxyl-terminated polyphenylene oxide resin comprises the following steps: adding a catalyst into a mixed solvent of a good solvent and a poor solvent of polyphenylene oxide, introducing oxygen at the rate of 50-25 ml/min for 30min, adding a phenol monomer and an aromatic diphenol monomer, continuously introducing oxygen, heating to 20-50 ℃, preferably to 30 ℃, reacting for 2-5h, preferably to 3h, pouring a reaction solution into the poor solvent with the volume of 10 times of the reaction solution after the reaction is finished to precipitate a product, and thus obtaining the low-molecular-weight double-end hydroxyl polyphenylene oxide, wherein the number average molecular weight of the low-molecular-weight double-end hydroxyl polyphenylene oxide resin is 1000-4000, preferably 2000-3000, and the structural formula is as follows:
in the formula: r1、R2、R3、R4H, halogen, aryl or C1-6 straight-chain alkyl or branched-chain alkyl respectively; y is a linear, branched or cyclic 2-valent hydrocarbon group having no more than 20 carbon atoms, and m and n are integers of more than 1.
The structural formula of the phenol monomer is as follows:
wherein R is1、R2、R3、R4Each independently hydrogen, alkyl, halogen, haloalkane or alkoxy.
The structural formula of the aromatic diphenol monomer is as follows:
wherein R is1、R2、R3、R4Each independently hydrogen, alkyl, halogen, haloalkane or alkoxy; r5、R6Respectively hydrogen, alkyl, halogen, halogenated alkane, phenolic hydroxyl or alkoxy;
the molar ratio of the phenol monomer to the aromatic diphenol monomer is 4-29: 1, preferably 8: 1.
the method is simple and convenient to operate and is beneficial to industrial production.
Further, the good solvent of the polyphenyl ether is one or more mixed solvents of toluene, chlorobenzene, trichloromethane and xylene; the poor solvent of the polyphenyl ether is one or more mixed solvents of methanol, ethanol, propanol, isobutanol, butanone and acetone; the volume ratio of the good solvent to the poor solvent in the mixed solvent of the good solvent and the poor solvent of the polyphenylene ether is 1.5-4: 1, preferably 4: 1.
The invention adopts the mixed solution of good solvent and poor solvent of the polyphenylene oxide to prepare the low molecular weight hydroxyl-terminated polyphenylene oxide, thereby effectively inhibiting the hydrolysis of the catalyst and improving the activity of the catalyst.
Further, the catalyst is a complex of a metal salt and amine, wherein the metal salt is any one of cuprous chloride, cupric chloride, cuprous bromide, cupric bromide, manganese chloride, manganese bromide or manganese carbonate, and is preferably cuprous chloride; the amine is any one of di-N-butylamine, N, N, N-tetramethylethylenediamine or triethylamine; the molar ratio of metal ions to amine in the catalyst is 100-30: 1.
the invention selects the complex of metal salt and amine as the catalyst, and has high catalytic activity and good stability.
Drawings
FIG. 1 is an infrared spectrum of a low molecular weight hydroxy-terminated polyphenylene ether resin of example 1 of the present invention;
FIG. 2 is a NMR spectrum of a low molecular weight bishydroxy polyphenylene ether resin of example 1 of the present invention;
FIG. 3 is a gel permeation chromatography spectrum of a low molecular weight hydroxyl-terminated polyphenylene ether resin in example 1 of the present invention;
FIG. 4 is a NMR spectrum of a low molecular weight bishydroxy polyphenylene ether resin of example 2 of the invention;
FIG. 5 is a NMR spectrum of a low molecular weight bishydroxy polyphenylene ether resin of example 3 of the present invention;
FIG. 6 is a NMR spectrum of a low molecular weight bishydroxy polyphenylene ether resin of example 4 of the present invention;
FIG. 7 is a NMR spectrum of a low molecular weight bishydroxy polyphenylene ether resin of example 5 of the present invention;
FIG. 8 is a NMR spectrum of a low molecular weight bishydroxy polyphenylene ether resin of example 6 of the present invention;
FIG. 9 is a NMR spectrum of a low molecular weight bishydroxy polyphenylene ether resin of example 7 of the present invention;
FIG. 10 is a NMR spectrum of a low molecular weight bishydroxy-terminated polyphenylene ether resin of example 8 of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Dissolving 10ml of di-n-butylamine and 0.08g of cuprous chloride in a mixed solution of 40ml of toluene and 10ml of methanol, introducing oxygen, continuously stirring for 10min, dissolving 2.147g of 2, 6-dimethylphenol and 0.624g of tetramethylbisphenol A in a mixed solution of 8ml of toluene and 2ml of methanol, dropwise adding the solution into a catalyst solution for about 30min, heating to 30 ℃, reacting for 3h after the dropwise adding is finished, taking out a reaction solution, adding a large amount of methanol to precipitate a product, filtering, washing with methanol, and drying the final product in an oven at 60 ℃. The yield of the final product is 83%, the infrared spectrum is shown in figure 1, 1306cm-1, 1187cm-1 and 1021cm-1 are vibration characteristic absorption peaks of C-O on a benzene ring, and 1605cm-1 and 1472cm-1 are stretching vibration characteristic peaks of a skeleton C-C on the benzene ring; 2967cm-1 and 2919cm-1 are the stretching vibration characteristic peak of methyl C-H on the benzene ring; 1380cm-1 is a bending vibration characteristic peak of methyl C-H on a benzene ring; 857cm-1 is the characteristic peak of C-H bending vibration on a benzene ring, a nuclear magnetic resonance hydrogen spectrum is shown in figure 2, a gel permeation chromatography spectrum is shown in figure 3, and the GPC results of the synthesized low molecular weight dihydroxy-terminated polyphenylene ether are shown in figure 3 as follows: the number average molecular weight Mn is 2500; weight average molecular weight Mw 4230; the molecular weight distribution index D is 1.69.
Example 2
Dissolving 10ml of di-n-butylamine and 0.08g of cuprous chloride in a mixed solution of 40ml of toluene and 10ml of methanol, introducing oxygen, continuously stirring for 10min, dissolving 1.952g of 2, 6-dimethylphenol and 1.136g of tetramethyl bisphenol A in a mixed solution of 8ml of toluene and 2ml of methanol, dropwise adding the solution into a catalyst solution for about 30min, heating to 30 ℃, reacting for 2h after dropwise adding is finished, taking out a reaction solution, adding a large amount of methanol to precipitate a product, filtering, washing with methanol, and drying the final product in an oven at 60 ℃. The yield of the final product is 73 percent, and the number average molecular weight Mn is 1726; the weight average molecular weight Mw is 2906; the molecular weight distribution index D is 1.68, and the hydrogen spectrum of nuclear magnetic resonance is shown in figure 4.
Example 3
Dissolving 8ml of N, N, N, N-tetramethylethylenediamine and 0.08g of cuprous chloride in a mixed solution of 40ml of toluene and 10ml of methanol, introducing oxygen, continuously stirring for 10min, dissolving 2.147g of 2, 6-dimethylphenol and 0.624g of tetramethylbisphenol A in a mixed solution of 8ml of toluene and 2ml of methanol, dropwise adding the solution into a catalyst solution for about 30min, heating to 30 ℃, reacting for 3h after the dropwise adding is finished, taking out a reaction solution, adding a large amount of methanol to precipitate a product, filtering, washing with methanol, and drying the final product in an oven at 60 ℃. The yield of the final product is 63 percent, and the number average molecular weight Mn is 2735; the weight average molecular weight Mw is 5127; the molecular weight distribution index D is 1.87, and the hydrogen spectrum of nuclear magnetic resonance is shown in figure 5.
Example 4
Dissolving 4ml of triethylamine and 0.09g of cuprous chloride in a mixed solution of 40ml of toluene and 10ml of methanol, introducing oxygen, continuously stirring for 10min, dissolving 2.147g of 2, 6-dimethylphenol and 0.624g of tetramethylbisphenol A in a mixed solution of 8ml of toluene and 2ml of methanol, dropwise adding into a catalyst solution for about 30min, heating to 30 ℃, reacting for 4h after dropwise adding, taking out a reaction solution, adding a large amount of methanol to precipitate a product, filtering, washing with methanol, and drying the final product in an oven at 60 ℃. The yield of the final product is 57 percent, and the number average molecular weight Mn is 4572; weight average molecular weight Mw 9288; the molecular weight distribution index D is 2.03, and the hydrogen spectrum of nuclear magnetic resonance is shown in figure 6.
Example 5
Dissolving 10ml of di-n-butylamine and 0.08g of cuprous chloride in 50ml of toluene, introducing oxygen, continuously stirring for 10min, dissolving 2.14g of 2, 6-dimethylphenol and 0.62g of tetramethyl bisphenol A in 10ml of toluene, dropwise adding the solution into a catalyst solution, controlling the time to be about 30min, heating to 30 ℃, reacting for 3h after dropwise adding is finished, taking out a reaction solution, adding a large amount of methanol to separate out a product, filtering, washing with methanol, and drying the final product in an oven at 60 ℃. The yield of the final product is 78 percent, and the number average molecular weight Mn is 2435; the weight average molecular weight Mw is 4443; the molecular weight distribution index D is 1.82, and the hydrogen spectrum of nuclear magnetic resonance is shown in figure 7.
Example 6
Dissolving 10ml of di-n-butylamine and 0.08g of cuprous chloride in a mixed solution consisting of 20ml of toluene and 5ml of methanol, introducing oxygen, continuously stirring for 10min, dissolving 2.318g of 2, 6-dimethylphenol and 0.284g of tetramethyl bisphenol A in a mixed solution consisting of 8ml of toluene and 2ml of methanol, dropwise adding the solution into a catalyst solution for about 30min, heating to 30 ℃, reacting for 3h after dropwise adding is finished, taking out a reaction solution, adding a large amount of methanol to precipitate a product, filtering, washing with methanol, and drying the final product in an oven at 60 ℃. The yield of the final product is 91.5 percent, and the number average molecular weight Mn is 3000; weight average molecular weight Mw 7571; the molecular weight distribution index D is 2.5, and the hydrogen spectrum of nuclear magnetic resonance is shown in figure 8.
Example 7
Dissolving 5ml of di-n-butylamine and 0.04g of cuprous chloride in a mixed solution consisting of 12.5ml of toluene and 12.5ml of methanol, introducing oxygen, continuously stirring for 10min, dissolving 1.07g of 2, 6-dimethylphenol and 0.31g of tetramethyl bisphenol A in a mixed solution consisting of 2.5ml of toluene and 2.5ml of methanol, dropwise adding into a catalyst solution for about 30min, heating to 30 ℃, reacting for 3h after the dropwise adding is finished, taking out a reaction solution, adding a large amount of methanol to precipitate a product, filtering, washing with methanol, and drying the final product in an oven at 60 ℃. The yield of the final product is 63 percent, and the number average molecular weight Mn is 2385; weight average molecular weight Mw 4779; the molecular weight distribution index D is 2.0, and the hydrogen spectrum of nuclear magnetic resonance is shown in figure 9.
Example 8
Dissolving 10ml of di-n-butylamine and 0.08g of cuprous chloride in a mixed solution consisting of 20ml of toluene and 5ml of methanol, introducing oxygen, continuously stirring for 10min, dissolving 2.35g of 2, 6-dimethylphenol and 0.189g of tetramethyl bisphenol A in a mixed solution consisting of 4ml of toluene and 1ml of methanol, dropwise adding the solution into a catalyst solution for about 30min, heating to 30 ℃, reacting for 3h after dropwise adding is finished, taking out a reaction solution, adding a large amount of methanol to precipitate a product, filtering, washing with methanol, and drying the final product in an oven at 60 ℃. The yield of the final product is 91 percent, and the number average molecular weight Mn is 4748; weight average molecular weight Mw 10337; the molecular weight distribution index D is 2.17, and the hydrogen spectrum of nuclear magnetic resonance is shown in figure 10.
Claims (2)
1. A preparation method of low molecular weight double-end hydroxyl polyphenylene ether resin is characterized in that 10ml of di-n-butylamine and 0.08g of cuprous chloride are dissolved in mixed liquor consisting of 40ml of methylbenzene and 10ml of methanol, oxygen is introduced, after continuous stirring is carried out for 10min, 2.147g of 2, 6-dimethylphenol and 0.624g of tetramethyl bisphenol are dissolved in mixed liquor consisting of 8ml of methylbenzene and 2ml of methanol, the mixed liquor is dripped into catalyst solution, the time is controlled to be 30min, the temperature is increased to 30 ℃, after the dripping is finished, reaction is carried out for 3h, reaction liquid is taken out, a large amount of methanol is added to separate out a product, and the product is filtered, washed by methanol, and finally put into an oven to be dried at 60 ℃.
2. A preparation method of low molecular weight double-end hydroxyl polyphenylene ether resin is characterized in that 10ml of di-n-butylamine and 0.08g of cuprous chloride are dissolved in a mixed solution of 40ml of methylbenzene and 10ml of methanol, oxygen is introduced, after continuous stirring is carried out for 10min, 1.952g of 2, 6-dimethylphenol and 1.136g of tetramethyl bisphenol A are dissolved in a mixed solution of 8ml of methylbenzene and 2ml of methanol, the solution is dripped into a catalyst solution for 30min, the temperature is raised to 30 ℃, after the dripping is finished, reaction is carried out for 2h, reaction liquid is taken out, a large amount of methanol is added to separate out a product, and the product is filtered, washed by methanol, and finally put into an oven to be dried at 60 ℃.
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| CN115626981A (en) * | 2019-12-31 | 2023-01-20 | 山东圣泉新材料股份有限公司 | Novel poly (arylene ether) resin and preparation method thereof |
| CN113683758A (en) * | 2020-05-18 | 2021-11-23 | 上海孛柯博科技有限公司 | Liquid crystal polymer and preparation method and application thereof |
| CN113292824B (en) * | 2021-06-07 | 2022-03-11 | 珠海宏昌电子材料有限公司 | Long-chain alkyl polyphenyl ether resin composition and application thereof |
| CN113248701B (en) * | 2021-06-07 | 2022-03-11 | 珠海宏昌电子材料有限公司 | Long-chain alkyl polyphenyl ether and preparation method and application thereof |
| CN114349955B (en) * | 2021-06-18 | 2024-01-19 | 山东圣泉新材料股份有限公司 | Multifunctional poly (arylene ether) resin and preparation method thereof |
| CN113698591B (en) * | 2021-08-17 | 2022-07-19 | 陕西硕博电子材料有限公司 | Preparation method of low-molecular-weight hydroxyl-terminated polyphenyl ether by one-pot method |
| CN113980265B (en) * | 2021-10-29 | 2023-06-27 | 湘潭大学 | Preparation method of high-purity low-molecular-weight dihydroxy polyphenyl ether |
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| CN103709398A (en) * | 2013-12-25 | 2014-04-09 | 济南开发区星火科学技术研究院 | Preparation method of polyphenyl ether |
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| CN103709398A (en) * | 2013-12-25 | 2014-04-09 | 济南开发区星火科学技术研究院 | Preparation method of polyphenyl ether |
| CN103980479A (en) * | 2014-04-30 | 2014-08-13 | 中国科学院化学研究所 | High-molecular-weight polyphenyl ether powder for 3D printing and preparation method thereof |
| CN105199097A (en) * | 2015-10-22 | 2015-12-30 | 南通星辰合成材料有限公司 | Method for producing polyphenol hydroxyl polyphenylene oxide resin |
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