1998-53-4

Usage

Chemical structure

The compound is composed of tetrafluoroethylene and trifluoroethylene groups connected by an ether linkage.

Fluorinated compound

It contains fluorine atoms, which contribute to its unique properties.

Chemical degradation resistance

The presence of fluorine atoms makes the compound highly resistant to chemical degradation.

Specialty materials and chemicals production

It is often used in the production of fluorinated polymers and surfactants.

Industrial applications

Its unique chemical structure and properties make it valuable in various industrial applications.

High resistance

It has high resistance to extreme temperatures, chemicals, and environmental conditions, making it suitable for industries requiring such materials.

Physical properties

The compound is likely to have low surface tension and high thermal stability due to the presence of fluorine atoms.

Chemical properties

The compound is likely to be chemically stable and unreactive due to the strong carbon-fluorine bonds.

Upstream product

• 1644-10-6 2,2',3,3,3,3',3',3'-octafluoro-2,2'-[(perfluoro ethylene)dioxy]bis(propanoyl fluoride) 
• 16835-51-1 Dimethyl perfluoro-2,7-dimethyl-3,6-dioxa-1,8-octanedioate 
• 497-19-8 sodium carbonate 

Relevant academic research and scientific papers

Synthesis of vinyl ether compounds by pyrolysis of dimethyl perfluoro-2,7-dimethyl-3,6-dioxa-1,8-octanedioate

Dimethyl perfluoro-2,7-dimethyl-3,6-dioxa-1,8-octanedioate (1) is pyrolyzed over Na2CO3, K2CO3, CaCO3, BaCO3 and ZnO to give mixtures containing perfluoro-3,6-dioxa-1,7-octadiene (2) and methyl perfluoro-2-methyl-3,6-dioxaoctanoate-7-ene (3).The pyrolysis conditions necessary to obtain these vinyl ethers require a higher temperature for the divalent metal compounds than for the monovalent.Increase in the pyrolysis temperature and decomposition time result in an increasing conversion of 1.At lower temperatures the pyrolysis product is mainly 3.However, the formation of 2 increases with increasing decomposition temperature.Dimethyl carbonate was found in the decomposition product of the pyrolysis of 1 over Na2CO3, K2CO3. - Keywords: Pyrolysis; Dimethyl perfluoroalkanedioate; Perfluorodivinyl ether; Methyl perfluorovinylalkanoate; Metal carbonate

Production of perfluoroalkyl perfluorodivinyl

PROBLEM TO BE SOLVED: To provide a method of obtaining perfluoroalkyl vinyl ether in high yield without causing any problems of a waste solvent treatment. SOLUTION: An aqueous solution or an alcohol solution of a perfluoroalkyl carboxylic acid alkali metal salt represented by the general formula Rf[OCF(CF3)-COOM]n (where n is an integer of 1 or 2, Rf is a perfluoroalkyl group with 2-12C having a straight-chain or branch structure when n=1 or a perfluoroalkylene group with 2-12C having a straight-chain or branch structure when n=2, and M is alkali metal) is atomized and dried until the remaining amount of the solvent becomes 1 wt.% or less at a temperature of 120°C or lower, and the obtained perfluoroalkyl carboxylic acid alkali metal salt is heated at a temperature of 120°C or higher to be subjected to vinylation. COPYRIGHT: (C)2013,JPOandINPIT

Purification of a fluoroalkyl vinyl ether (by machine translation)

PROBLEM TO BE SOLVED: To provide a purification method by which a fluoroalkyl vinyl ether is efficiently separated by using a specified treatment agent whose final removal is not needed. SOLUTION: A crude fluoroalkyl vinyl ether containing a hydrogen fluoride addition product of fluoroalkyl vinyl ether is distilled in the presence of 1 to 10 wt.% amines to the crude fluoroalkyl vinyl ether, having a boiling point higher than that of fluoroalkyl vinyl ether by 70°C or more. The fluoroalkyl vinyl ether contains fluoroalkyl monovinyl ether and fluoroalkylene divinyl ether. COPYRIGHT: (C)2013,JPO&INPIT