Polymerization of silyl- and fluoro-containing monomers

US10717820B2 · kind B2 · utility

Assignee

• THE SCRIPPS RESEARCH INSTITUTE · US

Inventors

• K. Barry Sharpless · Brookline, US
• Jiajia Dong · Beijing, CN
• Bing Gao · Los Altos, US
• Peng Wu · New Rochelle, US
• Hua Wang · Taiyuan, CN

Key dates

• Filing date: Jun 22, 2016
• Grant date: Jul 21, 2020
• Expiry date: Sep 18, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/24
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Condensation of fluoro-substituted and silyl-substituted monomers provides polymers suitable for use, e.g., as engineering polymers. A monomer composition is condensed in the presence of a bifluoride or poly(hydrogen fluoride) fluoride salt. The monomer composition contains a compound of formula F-X-F and a compound of formula (R1)3Si—Z—Si(R1)3, and forms an alternating X-Z polymer chain and a silyl fluoride byproduct. X has the formula -A(-R2-A)n-; each A is SO2, C(═O), or Het; R2 is an organic moiety; n is 0 or 1; Het is an aromatic nitrogen heterocycle; Z has the formula -L-R3-L-; each L is O, S, or N(R4); and each R3 is an organic moiety, and R4 comprises H or an organic moiety.