Polyarylether with main chain containing bisbenzofiurene and triaryl-s-triazine structure and preparation method of polyarylether

A technology of bisphenyl fluorene and s-triazine, which is applied in the field of polymer material synthesis, can solve problems such as research on synthesis of polyaryl ethers that are not involved, and achieve the effects of improved solubility and excellent solubility
CN106589348AActive Publication Date: 2017-04-26DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN UNIV OF TECH
Publication Date
2017-04-26

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Abstract

The invention discloses a polyarylether with the main chain containing a bisbenzofiurene and triaryl-s-triazine structure and a preparation method of the polyarylether and belongs to the field of the synthesis of polymer materials. The structure of the polyarylether contains a bisbenzofiurene group and a triaryl-s-triazine group and has a structural formula shown in the formula I. The preparation method includes the steps that a bisbenzofiurene-containing bisphenol monomer, a triaryl-s-triazine-containing bishalogen monomer, a bisbenzofiurene-free bisphenol monomer and a triaryl-s-triazine-free bishalogen monomer as raw materials are subjected to a nucleophilic substitution in the presence of a base catalyst, a solvent and a dehydrating agent to obtain the polyarylether. The polyarylether has better solubility in common organic solvents, at the same time, has a higher glass transition temperature (more than 290 DEG C) and a higher thermal decomposition temperature (the 5% weight loss temperature is more than 500 DEG C), is suitable for use as a high performance structural material, and also can serve as composite matrix resin or a functional membrane material and the like.
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Description

technical field

[0001] The invention belongs to the technical field of polymer material synthesis, and specifically relates to a polyarylether having a main chain containing biphenylfluorene and a triaryl-s-triazine structure and a preparation method thereof. Background technique

[0002] Polyarylether is a kind of engineering plastic material with excellent comprehensive performance. Its good thermal stability, acid and alkali resistance, radiation resistance and other advantages make it widely used as structural material in aerospace, electronic appliances, nuclear energy industry and civil high-tech field. However, with the continuous improvement of the use temperature and processability requirements of polymer materials in aerospace and other fields, traditional polyarylether materials have been unable to meet such requirements. For example, the traditional bisphenol A polysulfone (PSU) is soluble in commonly used organic solvents, but its use temperature is relatively ...

Claims

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