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Phosphorus-nitrogen copolyester material containing cyclotriphosphazene group and preparation method thereof

A technology of phosphorus-nitrogen copolyester and cyclotriphosphazene, which is applied in the field of phosphorus-nitrogen copolyester material and its preparation, can solve the problems of harsh processing and preparation technology, single material solubility, etc., and achieves good solubility in polar solution, The effect of high carbon residue rate and good flame retardant performance

Inactive Publication Date: 2016-03-30
SHANGHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For pure polyphenylene, its processing and preparation process is harsh, and the solubility of the material is single

Method used

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  • Phosphorus-nitrogen copolyester material containing cyclotriphosphazene group and preparation method thereof
  • Phosphorus-nitrogen copolyester material containing cyclotriphosphazene group and preparation method thereof
  • Phosphorus-nitrogen copolyester material containing cyclotriphosphazene group and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0023] (1) Dissolve 1 part of polyhexachlorocyclotriphosphazene prepared by multiple sublimation in tetrahydrofuran (THF) solvent, add dropwise the prepared 4 parts of sodium phenoxide THF solution, and react under nitrogen protection at 40°C for 24 hours. Remove THF by rotary distillation, wash with deionized water several times, and vacuum dry at 80°C for 24 hours to obtain a milky white colloid;

[0024] (2) Dissolve 1 part of solid powder obtained in step (1) in THF solvent, then add 6 parts of hydroquinone in THF solution dropwise, under nitrogen protection, react at 40° C. for 12 hours. Rotary distillation to remove THF, repeated washing with deionized water and ethanol, and vacuum drying at 40-80°C for 12 hours to obtain a yellow colloid;

[0025] (3) Heat 1 part of the yellow colloid and 0.5 wt% anhydrous acetic acid obtained in step (2) to 180° C. in a vacuum environment, and add 2 parts of terephthaloyl chloride (TPC). After reacting for 2 hours, wait for the reacti...

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Abstract

The invention relates to a phosphorus-nitrogen copolyester material containing a cyclotriphosphonitrile group and a preparation method thereof. The structural formula of the copolyester material is shown in the specification. According to the invention, on the premise of keeping the excellent heat stability of a wholly aromatic copolyester, the phosphorus-nitrogen low-melting-point copolyester is easily soluble in high-polarity organic solvent, has enhanced the machining property, and has high carbon residual rate at 600 DEG C, thus providing a new choice for mechanical high-temperature solid lubrication materials.

Description

technical field [0001] The invention relates to a phosphorus nitrogen copolyester material and a preparation method thereof. In particular, a phosphorus-nitrogen copolyester material containing cyclotriphosphazene groups and a preparation method thereof. Background technique [0002] The special structure and superior performance of polyhexachlorocyclotriphosphazene (HCCP) determine its extensive research and application in many fields. At present, it mainly focuses on nonlinear optical materials, special rubber and elastic materials, separation membranes, flame retardant materials, solid electrolytes, and pharmaceutical and biomedical materials. Chemical Structure: [0003] [0004] Polyphenylene ester (POB), a polymer containing p-benzoyl repeating structural units in the molecular main chain, the material is light yellow to brownish yellow crystalline powder or pellet, with excellent heat resistance and high dimensional stability at high temperatures , and has high ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/692C08G63/78C07F9/6593
Inventor 郭强钱君质张天骄毕宸洋李夏陈新新
Owner SHANGHAI UNIV
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