Acrylic acid modified low-dielectric fluorine-containing polyphenyl ether mixed adhesive and 5G copper-clad plate prepared from same
A polyphenylene ether, acrylic technology, applied in the direction of circuit substrate materials, electrical components, printed circuits, etc., can solve problems such as lowering the dielectric constant, and achieve the effects of low dielectric constant, good processability, and improved crosslinking density.
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Embodiment 1
[0034](1) Synthesis of low-molecular-weight hydroxyl-terminated fluorinated polyphenylene ether resin:
[0035] In solvent B, add 2,6-bis(trifluoromethyl)phenol, 2,6-dimethylphenol, 2,6-difluorophenol and catalyst A, react at a temperature of 20°C for 2 hours, then add 2,6-dimethyl-1,4-benzenediol was reacted for 3 hours, and by precipitation method, a low-molecular-weight hydroxyl-terminated fluorine-containing polyphenylene ether resin was obtained, and its structure was shown in the following formula; solvent B, 2,6-di The weight ratio of (trifluoromethyl)phenol, 2,6-dimethylphenol, 2,6-difluorophenol, catalyst A and 2,6-dimethyl-1,4-benzenediol is: 100:50 :200:10:1:10.
[0036]
[0037] In the structural formula, x is 5, y is 20, z is 1, and n is 6.
[0038] The solvent B is tetrahydrofuran, and the catalyst A is cuprous chloride-di-n-butylamine.
[0039] (2) Synthesis of low molecular weight acrylic acid modified fluorine-containing polyphenylene ether:
[0040] Th...
Embodiment 2
[0052] (1) Preparation of low-molecular-weight hydroxyl-terminated fluorinated polyphenylene ether resin:
[0053] In solvent B, add 2,6-bis(trifluoromethyl)phenol, 2,6-dimethylphenol, 2,6-difluorophenol and catalyst A, react at a temperature of 40°C for 4 hours, then add 2,6-Dimethyl-1,4-benzenediol was reacted for 3 hours, and by precipitation method, a low-molecular-weight hydroxyl-terminated fluorine-containing polyphenylene ether resin was obtained, and its structure was shown in the following formula; wherein solvent B, 2,6- Two (trifluoromethyl) phenol, 2,6-dimethylphenol, 2,6-difluorophenol, catalyst A and 2,6-dimethyl-1, the weight ratio of 4-benzenediol is: 100: 80:400:20:3:20.
[0054]
[0055] In the structural formula, x is 8, y is 40, z is 2, n is 20;
[0056] The solvent B is cyclohexanone, and the catalyst A is cuprous bromide-N,N-dimethylbutylamine.
[0057] (2) Preparation of low molecular weight acrylic acid modified fluorinated polyphenylene ether:
...
Embodiment 3
[0069] (1) Preparation of low-molecular-weight hydroxyl-terminated fluorinated polyphenylene ether resin:
[0070] In solvent B, add 2,6-bis(trifluoromethyl)phenol, 2,6-dimethylphenol, 2,6-difluorophenol and catalyst A, react at a temperature of 60°C for 6 hours, then add 2,6-Dimethyl-1,4-benzenediol was reacted for 5 hours, and by precipitation method, a low-molecular-weight hydroxyl-terminated fluorine-containing polyphenylene ether resin was obtained, and its structure was shown in the following formula; wherein solvent B, 2,6- Two (trifluoromethyl) phenol, 2,6-dimethylphenol, 2,6-difluorophenol, catalyst A and 2,6-dimethyl-1, the weight ratio of 4-benzenediol is: 100: 90:700:50:6:30.
[0071]
[0072] In the structural formula, x is 9, y is 70, z is 5, and n is 50;
[0073] The solvent B is chloroform, and the catalyst A is copper bromide-diethylamine.
[0074] (2) Preparation of low molecular weight acrylic acid modified fluorinated polyphenylene ether:
[0075] Th...
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