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A kind of low dielectric high light transmittance polyarylate, polyarylate film and preparation method thereof

A polyarylate, low-dielectric technology, applied in the field of polymer synthesis, achieves the effects of less equipment, mild polymerization conditions and lower production costs

Active Publication Date: 2021-11-23
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, there is no relevant report on the preparation of polyurethane by adopting polyphenolic monomers with ring structure

Method used

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  • A kind of low dielectric high light transmittance polyarylate, polyarylate film and preparation method thereof
  • A kind of low dielectric high light transmittance polyarylate, polyarylate film and preparation method thereof
  • A kind of low dielectric high light transmittance polyarylate, polyarylate film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Embodiment 1 (20% spiro bisphenol)

[0062] (1) Preparation of ring-structured polyphenol monomers

[0063] First, dissolve 33g of resorcinol in 200ml of ethanol solvent. After it is dissolved and clarified, add 10g of acetaldehyde to the solution at one time, continue to stir and heat up to 50°C, add 50ml of hydrochloric acid to the solution, and continue the reaction after the addition is complete. 12h, namely obtain product mixed liquor;

[0064] (2) Purification of ring-structured polyphenol monomers

[0065] Filter the above product mixture, collect the filter cake, wash with hot deionized water circulation, filter 3 times, and recrystallize with ethanol, and dry the solid collected by recrystallization and filtration at 60°C and vacuum degree -0.08Mpa for 24h, that is Obtain the purified cyclic structure polyphenol monomer (C-2R), its nuclear magnetic spectrum is as follows figure 1 shown;

[0066] (3) Preparation of low dielectric and high light transmittance...

Embodiment 2

[0074] Embodiment 2 (40% spiro bisphenol)

[0075] (1) Preparation of ring-structured polyphenol monomers

[0076] First, dissolve 33g of resorcinol in 150ml of methanol solvent. After it is dissolved and clarified, add 20g of propionaldehyde to the solution at one time, and continue stirring to raise the temperature to 50°C. Add phosphoric acid+hydrochloric acid (50+100) to the solution =150ml, after adding, continue to react for 2h to obtain the product mixture;

[0077] (2) Purification of ring-structured polyphenol monomers

[0078] Filter the above product mixture, collect the filter cake, wash with hot deionized water circulation, filter 6 times, and recrystallize with methanol, and dry the solid collected by recrystallization and filtration at 60°C and vacuum degree -0.09Mpa for 8h, that is Obtain the purified cyclic structure polyphenol monomer (C-3R), its nuclear magnetic spectrum is as follows Figure 5 shown;

[0079] (3) Preparation of low dielectric and high l...

Embodiment 3

[0088] (1) Preparation of ring-structured polyphenol monomers

[0089] First, dissolve 30g of resorcinol in 200ml of ethanol solvent. After it is dissolved and clarified, add 30g of n-butyraldehyde to the solution at one time, and continue stirring to raise the temperature to 50°C. Add 120ml of hydrochloric acid to the solution. After the addition, continue Reaction 12h, promptly obtains product mixed solution;

[0090] (2) Purification of ring-structured polyphenol monomers

[0091] Filter the above product mixture, collect the filter cake, wash with hot deionized water circulation, filter 3 times, and recrystallize with ethanol, and dry the solid collected by recrystallization and filtration at 60°C and vacuum degree -0.08Mpa for 24h, that is Obtain the purified cyclic structure polyphenol monomer (C-4R), its nuclear magnetic spectrum is as follows Figure 7 shown;

[0092] (3) Preparation of low dielectric and high light transmittance polyarylate:

[0093] Add 228g of b...

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Abstract

The invention relates to a low-dielectric and high-transmittance polyarylate, a polyarylate film and a preparation method thereof, belonging to the field of polymer synthesis. The invention provides a low-dielectric and high-transmittance polyarylate. The starting material of the polyarylate is composed of the following components: 50-310 parts by weight of aromatic diphenol monomer, 203-455 parts by weight of aromatic diacid chloride Parts by weight, 0.1-712 parts by weight of polyphenol monomer with ring structure, 0.1-20 parts by weight of catalyst, 80-200 parts by weight of alkali, 500-3000 parts by weight of water, 0.01-20 parts by weight of polymeric end-capping agent, 300 parts by weight of organic solvent ~2000 parts by weight. The present invention adopts the copolymerization of cyclic polyphenols and aromatic diphenols, introduces Angstrom-level intrinsic porous structure in the molecular structure of cyclic polyphenols, and utilizes the hydrophobicity of its cyclic structure to greatly reduce the polyarylate The dielectric constant and dielectric loss are expected to be used as basic materials in the fields of high-frequency communication and artificial intelligence interaction.

Description

technical field [0001] The invention relates to a low-dielectric and high-transmittance polyarylate, a polyarylate film and a preparation method thereof, belonging to the field of polymer synthesis. Background technique [0002] Polyarylate is a kind of polymer obtained by copolymerization of aromatic diacid or diacid chloride and aromatic diphenol. It has heat resistance, high mechanical properties, and good light transmission. It can be used to make high-performance engineering Plastic parts, fibers and films; at the same time, it has moderate dielectric properties (its dielectric constant is: 3.2-3.6, dielectric loss: 10 -2 -10 -3 ), can be further improved to reduce its dielectric constant and dielectric loss, combined with its excellent light transmission, it is expected to be used as basic materials for high-frequency communications such as 5G, the Internet of Things and human-computer interaction. [0003] In the prior art, there is no relevant report on the prepara...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/133C08G63/127C08G63/688C08G63/90C08J5/18C08L67/00C07C37/20C07C37/84C07C39/17
CPCC07C37/20C07C37/84C08G63/127C08G63/133C08G63/6884C08G63/90C08J5/18C08J2367/00C07C2603/92C07C39/17
Inventor 张刚文言泽杨杰王晗毛其泽严光明张雨吴喆夫
Owner SICHUAN UNIV
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