Monoamine-terminated ultrahigh-frequency low-dielectric main chain benzoxazine copolymer oligomer, copolymer resin and preparation method thereof

A benzoxazine copolymer resin, benzoxazine technology, applied in the field of organic polymer materials, can solve problems such as not being able to meet requirements well, and achieve the effects of excellent thermal properties, high crosslinking density, and improved dielectric properties

Pending Publication Date: 2020-02-21
淮北绿洲新材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dielectric constant k of traditional benzoxazine resins is generally 3.5, and f is generally 0.02 (1GHz), which cannot well meet the requirements of the electronic information industry for substrate resins

Method used

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  • Monoamine-terminated ultrahigh-frequency low-dielectric main chain benzoxazine copolymer oligomer, copolymer resin and preparation method thereof
  • Monoamine-terminated ultrahigh-frequency low-dielectric main chain benzoxazine copolymer oligomer, copolymer resin and preparation method thereof
  • Monoamine-terminated ultrahigh-frequency low-dielectric main chain benzoxazine copolymer oligomer, copolymer resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032]First add 0.04mol 1,6-hexamethylenediamine, 0.04mol bisphenol A, and 0.16mol paraformaldehyde into a 250mL three-necked flask equipped with a condenser, magnetic stirring, and a thermometer, then add 60mL of xylene, mix well and heat React at 120°C for 12 hours, then add 0.02mol aniline, 0.01mol bisphenol A, and 0.04mol paraformaldehyde and react for 12 hours, wherein the molar ratio of aldehyde groups, phenolic hydroxyl groups and amino functional groups in each added reactant is 2:1: The molar ratio of amino functional groups in 1,1,6-hexanediamine and aniline is 4:1. After the reaction, pour the reaction solution into 100mL methanol solution (concentration 40wt%) to obtain a suspension, let it stand for 24 hours, remove the supernatant to obtain a precipitate, vacuum dry the precipitate at 50°C for 8 hours, and finally grind the dried product The obtained powder is the main chain benzoxazine copolymer oligomer.

[0033] The molecular structural formulas of 1,6-hexame...

Embodiment 2

[0040] First add 0.04mol 1,6-hexamethylenediamine, 0.04mol bisphenol A, and 0.16mol paraformaldehyde into a 250mL three-necked flask equipped with a condenser, magnetic stirring, and a thermometer, then add 60mL of xylene, mix well and heat React at 120°C for 12 hours, then add 0.02mol p-ethynylaniline, 0.01mol bisphenol A, and 0.04mol paraformaldehyde and react for 12 hours, wherein the molar ratio of aldehyde groups, phenolic hydroxyl groups and amino functional groups in each added reactant is 2 :1:1, the molar ratio of amino functional groups in 1,6-hexanediamine and p-ethynylaniline is 4:1. After the reaction, pour the reaction solution into 100mL methanol solution (concentration 40wt%) to obtain a suspension, let it stand for 24 hours, remove the supernatant to obtain a precipitate, vacuum dry the precipitate at 50°C for 8 hours, and finally grind the dried product The obtained powder is the main chain benzoxazine copolymer oligomer.

[0041] The molecular structural fo...

Embodiment 3

[0048] Add 0.025mol 4,4'-diaminodiphenylmethane, 0.05mol p-vinylaniline, 0.05mol bisphenol A, and 0.2mol paraformaldehyde into a three-necked flask equipped with a condenser, magnetic stirring, and a thermometer, and add 51mL of toluene , heated to 100°C for 24 hours, the molar ratio of aldehyde group, phenolic hydroxyl group and amino functional group is 2:1:1, and the molar ratio of amine functional group in 4,4'-diaminodiphenylmethane and p-vinylaniline is 1:1 . After the reaction, pour the reaction solution into 100mL methanol solution (concentration 80wt%) to obtain a suspension, let it stand for 24 hours, remove the supernatant to obtain a precipitate, vacuum dry the precipitate at 60°C for 6 hours, and finally grind the dried product The obtained powder is the main chain benzoxazine copolymer oligomer.

[0049] The molecular structural formulas of 4,4'-diaminodiphenylmethane, bisphenol A and p-vinylaniline used in this example are respectively:

[0050]

[0051] mo...

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Abstract

The invention relates to a monoamine-terminated ultrahigh-frequency low-dielectric main chain benzoxazine copolymer oligomer, copolymer resin and a preparation method thereof. The preparation method of the main chain benzoxazine copolymer oligomer comprises the following steps: adding an aldehyde compound, an amine compound and a dihydric phenol compound into a reaction container in a one-time charging or multi-step and multi-time charging manner, adding an organic solvent to dissolve and react, and carrying out post-treatment to obtain the main chain benzoxazine copolymer oligomer. The copolymer oligomer disclosed by the invention has good processability; the copolymer resin obtained by heating and curing not only retains the high crosslinking density of the pure main chain benzoxazine resin, but also has the advantages of better thermal property, toughness and the like, has low dielectric constant and dielectric loss at ultrahigh frequency, and can be used as a dielectric material tobe applied to multiple fields of ultrahigh frequency and high-speed circuit board substrates and the like. Part of monoamine-terminated oligomers containing cross-linking groups can be further cross-linked, so that more excellent thermal properties and dielectric properties are obtained.

Description

technical field [0001] The invention relates to the technical field of organic polymer materials, in particular to a monoamine-terminated ultra-high-frequency low-dielectric main chain benzoxazine copolymer oligomer, a copolymer resin and a preparation method thereof. Background technique [0002] With the development of high informatization in today's society, information processing or information communication technologies such as computers, mobile communications, and networks have gradually penetrated into every corner of society and people's lives. Especially with the advent of the 5G era, electronic components and their Carrier-copper clad laminate puts forward higher requirements. The propagation rate and transmission loss of the signal are closely related to the dielectric properties of the copper-clad laminate substrate. The pursuit of high-frequency and high-speed signal transmission requires the copper-clad laminate to have a lower dielectric constant (k) and diele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G14/073
CPCC08G14/06
Inventor 曾鸣陈江炳
Owner 淮北绿洲新材料有限责任公司
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