COFs film material with ultra-low dielectric constant
An ultra-low dielectric constant, thin-film material technology, applied in the field of dielectric materials, to achieve the effects of good humidity resistance, simple operation, and good stability
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Embodiment 1
[0068] (1) Add TAPB and PTSA to a container filled with water and acetonitrile (V 水 :V 乙腈 =7:3) in a beaker, mix well to obtain a TAPB concentration of 2.67μM mL -1 , PTSA concentration is 8μM mL -1 Solution A; the TPOC 1 Add to a beaker filled with ethyl acetate, mix well to get TPOC 1 Concentration is 4μM mL -1 Solution B of
[0069] (2) Slowly transfer solution B to the upper layer of solution A, and seal the beaker containing solution B and solution A with a plastic wrap, and place it at 20° C. for 3 d to form a film material;
[0070] (3) Remove the film material from the beaker, soak and wash in water, N,N-dimethylformamide, ethanol, and acetone in sequence, soak and wash in each solvent for 3 times, and soak and wash for 1 hour each time; The washed film material was dried in an oven at 60°C for 12 hours to obtain a yellow COFs film material with ultra-low dielectric constant, which is called TAPB-TPOC for short. 1 - COF membrane material.
Embodiment 2
[0072] (1) Add TAPB and PTSA to a container filled with water and acetonitrile (V 水 :V 乙腈 =7:3) in a beaker, mix well to obtain a TAPB concentration of 4 μM mL-1 , PTSA concentration is 12μM mL -1 Solution A; the TPOC 4 Add to a beaker filled with ethyl acetate, mix well to get TPOC 4 Concentration is 6μM mL -1 Solution B of
[0073] (2) Slowly transfer solution B to the upper layer of solution A, and seal the beaker containing solution B and solution A with a plastic wrap, and place it at 20° C. for 3 d to form a film material;
[0074] (3) Remove the film material from the beaker, soak and wash in water, N,N-dimethylformamide, ethanol, and acetone in sequence, soak and wash in each solvent for 3 times, and soak and wash for 1 hour each time; The washed film material was dried in an oven at 60°C for 12 hours to obtain a yellow COFs film material with ultra-low dielectric constant, which is called TAPB-TPOC for short. 4 - COF membrane material.
Embodiment 3
[0076] (1) Add TAPB and PTSA to a container filled with water and acetonitrile (V 水 :V 乙腈 =7:3) in a beaker, mix well to obtain a TAPB concentration of 4 μM mL -1 , PTSA concentration is 12μM mL -1 Solution A; the TPOC 6 Add to a beaker filled with ethyl acetate, mix well to get TPOC 6 Concentration is 6μM mL -1 Solution B of
[0077] (2) Slowly transfer solution B to the upper layer of solution A, and seal the beaker containing solution B and solution A with a plastic wrap, and place it at 20° C. for 3 d to form a film material;
[0078] (3) Remove the film material from the beaker, soak and wash in water, N,N-dimethylformamide, ethanol, and acetone in sequence, soak and wash in each solvent for 3 times, and soak and wash for 1 hour each time; The washed film material was dried in an oven at 60°C for 12 hours to obtain a yellow COFs film material with ultra-low dielectric constant, which is called TAPB-TPOC for short. 6 - COF membrane material.
[0079] On the basis o...
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