Low-dielectric-constant super-crosslinked polymer/polyimide composite film used at high frequency, preparation method and application of low-dielectric-constant super-crosslinked polymer/polyimide composite film
The invention provides a super-crosslinked polymer/polyimide composite film with a low dielectric constant under a high-frequency working condition and a preparation method and application thereof.The preparation method comprises the steps that diaminodiphenyl ether, hexafluoroisopropene diphthalic...
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| creator | SUN WEIKAI FU YAQIN MEI XIANGYU SHI SHUAIDA YANG QINGBIAO |
| description | The invention provides a super-crosslinked polymer/polyimide composite film with a low dielectric constant under a high-frequency working condition and a preparation method and application thereof.The preparation method comprises the steps that diaminodiphenyl ether, hexafluoroisopropene diphthalic anhydride and an aprotic solvent are mixed and subjected to a polymerization reaction, polyamide acid is generated, a super-crosslinked polymer is added, and the super-crosslinked polymer/polyimide composite film with the low dielectric constant under the high-frequency working condition is obtained; carrying out stepped heating amidation treatment to obtain a polyimide composite film; and the mass content of the super-crosslinked polymer in the composite membrane is 5-20%. According to the invention, the super-crosslinked polymer is added in the reaction process, so that the super-crosslinked polymer is more uniformly dispersed in the composite film, the doping amount of the super-crosslinked polymer is controlled |
| format | Patent |
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| language | chi ; eng |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP |
| title | Low-dielectric-constant super-crosslinked polymer/polyimide composite film used at high frequency, preparation method and application of low-dielectric-constant super-crosslinked polymer/polyimide composite film |
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