Polyphosphazene-semi-aromatic amide material and preparation method thereof

A semi-aromatic amide and polyphosphazene technology, which is applied in the field of polyphosphazene-semi-aromatic amide materials and its preparation, can solve the problems of single material solubility and harsh processing and preparation technology, and achieve good thermal stability and good polarity The effect of solution solubility and good application prospects

Inactive Publication Date: 2011-12-21
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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  • Polyphosphazene-semi-aromatic amide material and preparation method thereof
  • Polyphosphazene-semi-aromatic amide material and preparation method thereof
  • Polyphosphazene-semi-aromatic amide material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The synthesis of polyphosphazene-semiaromatic amide material is realized through the following steps:

[0026] (1) In a 500mL three-neck flask equipped with magnetic rotor stirring, condenser and thermometer, dissolve hexachlorocyclotriphosphazene (17.4g 0.05mol) prepared by multiple sublimation in 50mL tetrahydrofuran (THF) solvent, add dropwise Prepared (2.32g 0.2mol) sodium phenate (under nitrogen protection, (4.6g 0.2mol) sodium metal and (18.822g 0.2mol) phenol reacted in 50mL THF solution at 25°C for 2 hours) THF solution, nitrogen Protected and reacted at 40°C for 12 hours. THF was removed by rotary distillation, washed several times with deionized water, and vacuum-dried at 50°C for 24 hours to obtain a milky white colloid.

[0027] (2) In a 500mL three-neck flask equipped with magnetic rotor stirring, a condenser tube, and an HCl absorption device, dissolve the (10.37g 0.018mol) milky white colloid obtained in step (1) in 50mL of THF solvent, and add (2.4 g 0...

Embodiment 2

[0030] The synthesis of polyphosphazene-semiaromatic amide material is realized through the following steps:

[0031] (1) In a 500mL three-neck flask equipped with magnetic rotor stirring, condenser and thermometer, dissolve hexachlorocyclotriphosphazene (13.9g 0.04mol) prepared by multiple sublimation in 50mL tetrahydrofuran (THF) solvent, add dropwise Prepared (1.856g 0.16mol) sodium phenate (under nitrogen protection, (3.68g 0.16mol) metal sodium and (15.06g 0.16mol) phenol reacted in 50mL THF solution at 25°C for 2 hours) THF solution, nitrogen Protected and reacted at 40°C for 12 hours. THF was removed by rotary distillation, washed several times with deionized water, and vacuum-dried at 50°C for 24 hours to obtain a milky white colloid.

[0032] (2) In a 500mL three-neck flask equipped with a magnetic rotor stirring, a condenser, and an HCl absorption device, dissolve the (11.52g 0.02mol) milky white colloid obtained in step (1) in 50mL of THF solvent, and add (2.4 g 0...

Embodiment 3

[0035] The synthesis of polyphosphazene-semiaromatic amide material is realized through the following steps:

[0036] (1) In a 500mL three-neck flask equipped with magnetic rotor stirring, condenser and thermometer, hexachlorocyclotriphosphazene prepared by multiple sublimation (34.8g 0.1mol) was dissolved in 100mL tetrahydrofuran (THF) solvent, and added dropwise Prepared (9.28g 0.4mol) sodium phenate (prepared by reacting (9.2g 0.4mol) metal sodium and (37.64g 0.4mol) phenol in 100mL THF solution at 25°C for 2 hours under nitrogen protection) THF solution, nitrogen Protected and reacted at 40°C for 24 hours. THF was removed by rotary distillation, washed several times with deionized water, and vacuum-dried at 50°C for 24 hours to obtain a milky white colloid.

[0037](2) In a 500mL three-necked flask equipped with a magnetic rotor stirring, a condenser, and an HCl absorption device, dissolve the (28.81g 0.05mol) milky white colloid obtained in step (1) in 100mL THF solvent,...

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PUM

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Abstract

The invention relates to a novel polyphosphazene-semi-aromatic amide material and a preparation method thereof. The polyphosphazene-semi-aromatic amide has the following structural formula. The polyphosphazene-semi-aromatic amide is easily dissolved in a high polar organic solvent on the premise of keeping excellent thermal stability of full aromatic polyamide, so the machining performance of the polyphosphazene-semi-aromatic amide is enhanced; and the polyphosphazene-semi-aromatic amide material has relatively high carbon residue rate at the temperature of 600 DEG C, is mainly applied to automobile engine components, mechanical components and aerospace equipment components, and provides a new choice for mechanical high-temperature solid lubricating materials.

Description

technical field [0001] The invention relates to a polyphosphazene-semiaromatic amide material and a preparation method thereof. Background technique [0002] The special structure and superior performance of polyphosphazene (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] Polyterephthalide-p-phenylenediamine (PPTA) fiber, known as aramid 1414 in our country, has heat resistance close to that of inorganic fiber, high dimensional stability at high temperature, and high flame retardancy. It will not shrink when in contact, and can retain the physical properties of the fiber for a long time, and its biggest feature is its low density, so the specific strength and specific modulus are several times higher...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/42C08G79/04
Inventor 郭强赵正平张经毅孙金亮张四刚刘海彬聂智军
Owner SHANGHAI UNIV
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