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Bisphenol type poly arylate and its preparing method and use

A polyarylate and bisphenol-type technology, which is applied in the field of bisphenol-type polyarylate and its preparation, can solve the problems of increasing surface contact resistance, reducing the protective film of silver-plated electrical components, reducing solderability, etc., and achieving saving Energy, small impact, good mechanical properties

Inactive Publication Date: 2007-04-11
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these polymers generally have strong insulation properties. After the surface of the silver layer is coated, the surface contact resistance is greatly increased and the solderability is reduced, so it is not suitable as a protective film for silver-plated electrical components.

Method used

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  • Bisphenol type poly arylate and its preparing method and use
  • Bisphenol type poly arylate and its preparing method and use
  • Bisphenol type poly arylate and its preparing method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1: 946 parts of distilled water, 20 parts of sodium hydroxide, 45.8 parts of 2.2-bis(4-hydroxyphenyl)propane (bisphenol A), and 0.32 parts of triethylbenzyl ammonium chloride were added to a stirring In a three-necked flask with a thermometer and a thermometer, the water phase is formed after stirring and dissolving; the oil phase composed of 315 parts of dichloromethane, 12.24 parts of terephthaloyl chloride, and 28.56 parts of isophthaloyl chloride is added dropwise to the reactor. . After reacting at a temperature of 10° C. for half an hour, 1.7 parts of tert-butylphenol was added, and the reaction was continued for 1 hour to stop the reaction. Neutralize the reaction solution with acetic acid until neutral, let it stand to separate the two phases, add the next layer of organic matter dropwise to methanol under vigorous stirring for precipitation, filter the precipitate and wash it with distilled water until there is no chloride ion, and finally put The prod...

Embodiment 2

[0044]Example 2: 890 parts of distilled water, 18 parts of sodium hydroxide, 36 parts of 2.2-bis(4-hydroxyphenyl) propane (bisphenol A), and 0.2 part of triethylbenzyl ammonium chloride were added to a stirring In a three-necked flask with a device and a thermometer, the water phase was formed after stirring and dissolving; the oil phase composed of 232 parts of dichloromethane, 28.56 parts of terephthaloyl chloride and 12.24 parts of isophthaloyl chloride was added dropwise to the reactor. After the reaction was carried out at 20°C for half an hour, 1 part of phenol was added, and the reaction was continued for 1.5 hours before the reaction was stopped. Neutralize the reaction solution with acetic acid until it is neutral, let it stand to separate the two phases, add the organic phase of the next layer dropwise to the vigorously stirred n-hexane for precipitation, filter the precipitate and wash it with distilled water until there is no chloride ion, and finally put The produ...

Embodiment 3

[0046] Example 3: 990 parts of distilled water, 23 parts of sodium hydroxide, 48 parts of 2.2-bis(4-hydroxyphenyl) propane (bisphenol A), 0.5 part of cetyltrimethylammonium bromide, were added to a stirring In a three-necked flask with a device and a thermometer, the water phase was formed after stirring and dissolving; the oil phase composed of 336 parts of chloroform, 34.2 parts of terephthaloyl chloride and 22.8 parts of isophthaloyl chloride was added dropwise to the reactor. After reacting at a temperature of 30° C. for half an hour, 2 parts of tert-butylphenol were added, and the reaction was continued for 2 hours before stopping the reaction. Neutralize the reaction liquid with acetic acid until it is neutral, let it stand to separate the two phases, add the organic phase of the next layer dropwise to hot water under vigorous stirring for precipitation, filter the precipitate and wash it with distilled water until there is no chloride ion, and finally The product was dr...

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Abstract

The present invention discloses one kind of bisphenol type polyarylate and its preparation process and use. The preparation process of bisphenol type polyarylate includes the following steps: mixing distilled water 890-990 weight portions, sodium hydroxide 18-23 weight portions, bisphenol compound 36-50 weight portions and organic quaternary ammonium salt 0.2-0.8 weight portions via stirring to dissolve and form water phase; dropping chlorohydrocarbon 232-336 weight portions as solvent and phenyl diformyl chloride 25-57 weight portions to form oil phase; stirring to react at 10-35 deg.c; adding end capping agent 1-3 weight portions before further reaction for 1-3 hr; neutralizing the reacted liquid, stilling to separate two phase, dropping the organic phase to settling agent via violent stirring to settle; washing the settled product with distilled water until reaching no chlorine ion; stoving; solvent extraction to purify and final stoving.

Description

technical field [0001] The technology of the invention relates to a bisphenol type polyarylate and its preparation method and application, which is suitable for polymer coatings for anti-corrosion and discoloration of silver-plated films. The invention belongs to the field of polymer coating for anticorrosion. Background technique [0002] As we all know, silver has good decorative properties, excellent electrical conductivity, thermal conductivity and solderability. Therefore, silver-plated parts are widely used in instruments, meters and various electronic products. However, silver is easily corroded and discolored in the atmospheric environment, which not only reduces its decorativeness, affects the solderability of electrical components, but also increases the surface resistance of silver-plated parts, increases power loss, and reduces the stability and reliability of electronic equipment. , or even serious accidents. [0003] In order to prevent corrosion and discolo...

Claims

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Application Information

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IPC IPC(8): C08G63/195C08G63/79C09D167/03C09D5/08
Inventor 朱如瑾刘艳
Owner SICHUAN UNIV
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