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A class of soluble polyaryletherketone containing diisopropylfluorene structure and its preparation method

A technology of polyaryletherketone and propylfluorene, which is applied in the field of high-performance polyaryletherketone polymers and their preparation, can solve the problems of limited varieties and achieve the effects of low cost, simple synthesis route and good thermal stability

Active Publication Date: 2016-07-06
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently developed soluble polyaryletherketones are very limited, especially polyaryletherketones with distorted non-coplanar structures or large substituted side group structures

Method used

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  • A class of soluble polyaryletherketone containing diisopropylfluorene structure and its preparation method
  • A class of soluble polyaryletherketone containing diisopropylfluorene structure and its preparation method
  • A class of soluble polyaryletherketone containing diisopropylfluorene structure and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In a dry 50ml three-necked round-bottomed flask with nitrogen, add 2.6074g (6mmol) of bisphenol monomer containing diisopropylfluorene structure, 1.3092 (6mmol) active difluoroketone monomer (in the form of 4,4' -difluorobenzophenone as an example), 0.8293g (6mmol) of potassium carbonate, 15.3ml of N-methylpyrrolidone, 3.5ml of toluene, after azeotropic dehydration at 130°C for 3h, distill the toluene, and further heat up to After the polycondensation reaction at 160°C for 10 hours, the reaction was completed, and the reactant was poured into ethanol for sedimentation to obtain a fibrous polyaryletherketone polymer with a yield of 98% (based on the conversion of bisphenol monomers containing diisopropylfluorene structure rate meter).

[0025] FT-IR(KBr)ν / cm -1 :3062,2968,2875,1656,1597,1484,1244,1158. 1 HNMR (CDCl 3 ,400MHz)δ:7.80(d,2H),7.73(d,4H),7.37-7.42(m,4H),7.29-7.34(m,4H),6.91(d,4H),6.87(m,2H) , 6.76(d,2H). Such as figure 1 and 2 shown.

Embodiment 2

[0027] In a dry 50ml three-necked round-bottomed flask with nitrogen, add 2.6074g (6mmol) of bisphenol monomer containing diisopropylfluorene structure, 1.3092 (6mmol) active difluoroketone monomer (in the form of 4,4' -difluorobenzophenone as an example), 2.0732g (15mmol) of potassium carbonate, 19.0ml of N-methylpyrrolidone, 7.6ml of toluene, after azeotropic dehydration at 150°C for 1h, distill the toluene, and further heat up to After the polycondensation reaction at 170°C for 6 hours, the reaction was terminated, and the reactants were poured into ethanol for sedimentation to obtain a fibrous polyaryletherketone polymer with a yield of 98% (based on the conversion of bisphenol monomers containing diisopropylfluorene structure rate meter).

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Abstract

The invention provides diisopropyl fluorene structure-containing soluble polyaryletherketone. A preparation process of the diisopropyl fluorene structure-containing soluble polyaryletherketone comprises the following steps: dissolving bisphenol monomers and active difluoroketone monomers, which contain diisopropyl fluorene structures, in an organic solvent according to equal mole ratios under the nitrogen protection, and performing azeotropic dehydration, condensation polymerization and sedimentation under the alkaline reaction conditions to obtain a fibrous polyaryletherketone polymer. The preparation process is easy for industrialized production, the initial raw materials used in the preparation process are easily available, and the polymer cost is low; polyaryletherketone is excellent in film forming property and thermal stability, and has potential application values in the fields of high-temperature-resistant film materials and coatings.

Description

technical field [0001] The invention belongs to the field of high-performance polyaryletherketone polymers and their preparation, and in particular relates to a class of soluble polyaryletherketones containing diisopropylfluorene structures and their preparation methods. Background technique [0002] Polyaryletherketone is an important class of engineering plastics. Due to its excellent thermal, mechanical and electrical properties, it has important application value in the fields of machinery, automobiles, and petrochemicals. This type of aromatic polymer has a rigid molecular chain structure and a partial crystalline structure. This molecular structure feature makes polyaryletherketone difficult to melt and dissolve, and it is difficult to apply it in the fields of high-temperature resistant film materials and coatings. Therefore, it is very important to modify the molecular structure of polyaryletherketone to improve the dissolution and film-forming properties of polyaryl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/40
Inventor 汪称意沈斌徐常赵晓燕李坚任强
Owner CHANGZHOU UNIV
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