Preparation of linear crystalline homopolybenzyl

US4259475A · kind A · utility

Assignee

• Exxon Research and Engineering Company · US

Inventors

• Burnett H. Johnson · Baytown, US
• John E. Chandler · Edison, US
• Robert W. Lenz · Hochdorf-Assenheim, DE

Key dates

• Filing date: Mar 29, 1979
• Grant date: Mar 31, 1981
• Expiry date: Mar 29, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G61/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polybenzyls of high molecular weight and high crystallinity are obtained by polymerizing aralkyl halides in the presence of a catalyst comprising a complex of a Friedel-Crafts catalyst with a complexing agent which can be a nitroarene or a nitroalkane. The complex catalyst allows the polymerization to be run at higher temperatures and with higher rates. Yields are obtained up to 100%.