Preparation, decarboxylation and polymerization of novel acid fluorides and resulting monomers

US4687821A · kind A · utility

Assignee

• THE DOW CHEMICAL COMPANY · US

Inventors

• Bobby R. Ezzell · Lake Jackson, US
• William P. Carl · Angleton, US
• William A. Mod · Lake Jackson, US

Key dates

• Filing date: Jul 5, 1983
• Grant date: Aug 18, 1987
• Expiry date: Jul 5, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C51/58
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Compounds represented by the general formulas ##STR1## are prepared by reacting halofluoropropylene oxides with fluorinated acid fluorides and ketones. These compounds may be decarboxylated to form useful monomers, ##STR2## wherein a=to 3; PA1 b=to 3; PA1 c=0 or 1; PA1 provided a+b+c.noteq.0; PA1 n=zero or an integer greater than zero; PA1 R.sub.f =F, perfluoroalkyl or fluorochloroalkyl; PA1 X=F, Cl, Br or mixtures thereof when n>1; PA1 X'=Cl or Br; PA1 Y=Cl, Br, F or I; PA1 Z=F, OH, NRR' or OA; PA1 R and R' are independently selected from the group consisting of hydrogen, an alkyl having one or more than one carbon atom and an aryl; PA1 A=alkali metal, quaternary ammonium, R or an aryl. These monomers may then be polymerized into polymers having useful properties.