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Catalyst for ternary copolymerization of norbornenes, tetrafluoroethylene and pentenes and ternary copolymerization method

A pentene-based ternary and tetrafluoroethylene technology, applied in the field of polymer synthesis, can solve the problems of low copolymer yield, unachieved yield, long reaction time and the like, and achieves low reaction temperature, high yield, catalytic Efficient effect

Inactive Publication Date: 2013-08-21
NINGBO UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The inventor's novel compound called Fe2 (a special form) described earlier had several technical benefits over previous types like those mentioned previously for this purpose: it produced strong chemical reactions when exposed under specific conditions while also being easier to clean up after use compared to other existing methods such as acidic or basic treatments. This makes them ideal for applications where there are strict regulations against harmful substances released from materials used during production processes.

Problems solved by technology

Technological Problem: Current methods for producing various types of poly(nonyl phthalocyanine)-based), which may also contain residual impurities like oxygen atoms from other compounds during storage due to strong bonds between carbon and hydrogen atoms within them. These defects affect optically important characteristics of the final product. Therefore, alternative techniques involving different chemical reactions and purification processes must overcome those issues beforehand.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Add 20 ml of tetrahydrofuran, 0.01 mol of ferric chloride, 0.10 mol of 8-hydroxyquinoline, and 0.10 mol of triethylaluminum to a one-mouth glass bottle that has been evacuated several times and baked with nitrogen, and placed in a water bath at 50°C. Keep the temperature constant for 30 minutes, and then obtain the iron complex catalyst after cooling.

Embodiment 2

[0029] In a single-necked glass bottle that has been evacuated several times and baked with nitrogen, add 20 ml of anisole, 0.01 mol of ferric chloride, 0.08 mol of α,α,-bipyridine and 0.10 mol of triisobutylaluminum, Keep the temperature in a water bath at 40°C for 30 minutes, and after cooling, the ruthenium complex catalyst is obtained.

[0030] Add 0.03 mole of bicyclo 1-methylbicyclo[2,2,1]hept-2-ene, 0.03 mole of tetrafluoroethylene, and 0.03 mole of 3-methyl-1-pentene into an autoclave filled with nitrogen, Add 10ml of anisole to dissolve. Take 0.9% of the above-mentioned catalyst based on the total weight of norbornene, tetrafluoroethylene, and 3-methyl-1-pentene, and inject it into the above-mentioned mixture with a syringe. Constant temperature at 20°C, 0.2MP pressure, react for 3 hours. The product was poured into a methanol solution containing 5% hydrochloric acid to precipitate norbornene, tetrafluoroethylene, and 3-methyl-1-pentene terpolymer. The precipitate w...

Embodiment 3

[0032] Add 20 ml of 1,4-dioxane, 0.01 mol of ferric dichloride, 0.07 mol of phenanthroline and 0.08 mol of triethylzinc into a one-mouth glass bottle that has been evacuated several times and baked with nitrogen. , keep the temperature in a water bath at 45°C for 15 minutes, and after cooling, the iron complex catalyst is obtained.

[0033] Add 0.03 mole of bicyclo 5-methylbicyclo[2,2,1]hept-2-ene, 0.03 mole of tetrafluoroethylene, 0.03 mole of 2-pentene into the autoclave filled with nitrogen, add 10ml of 1,4- Dioxane dissolves. Take 0.02% of the above catalyst based on the total weight of norbornene, tetrafluoroethylene and 2-pentene, and inject it into the above mixture with a syringe. Constant temperature at 100°C, 1MP pressure, react for 4 hours. The product was poured into a methanol solution containing 5% hydrochloric acid to precipitate norbornene, tetrafluoroethylene, and 2-pentene terpolymer. The precipitate was washed with methanol until neutral, and dried in vacu...

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Abstract

The invention relates to a catalyst for ternary copolymerization of norbornenes, tetrafluoroethylene and pentenes and a ternary copolymerization method. The catalyst is characterized in that the catalyst is prepared through the following method comprising the steps of: dissolving iron dichloride, a ligand and an alkyl metal compound in a solvent in a dry single-neck glass bottle in an inert gas atmosphere, sealing a bottle mouth through an emulsion pipe, keeping the constant temperature in a water bath at the temperature of 40-50 DEG C for 10-30min, and cooling to obtain an iron complex catalyst. Compared with the prior art, the catalyst provided by the invention is a novel iron complex catalyst which can produce catalytic activity in an nitrogen-protected system at a certain pressure and the temperature of 20-120 DEG C so as to catalyze the ternary copolymerization of the norbornenes with the tetrafluoroethylene and the pentenes, and a product after soaking in methanol is very easy to wash and separate. The catalyst has the characteristics of high copolymer yield, low reaction temperature, low price, easiness in obtainment, high catalytic efficiency and the like.

Description

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Claims

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Application Information

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Owner NINGBO UNIVERSITY OF TECHNOLOGY
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