Amine-terminated telechelic polymers and precursors thereto and methods for their preparation

US8552122B2 · kind B2 · utility

Assignees

• The University of Southern Mississippi · US
• CHEVRON ORONITE COMPANY LLC · US

Inventors

• Robson F. Storey · Hattiesburg, US
• Casey D. Stokes · Belle Chasse, US
• James J. Harrison · Novato, US
• Nemesio Martinez-Castro · Bristol, US

Key dates

• Filing date: Mar 31, 2009
• Grant date: Oct 8, 2013
• Expiry date: Feb 24, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2070/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Disclosed is a method of preparing terminally functionalized telechelic polymers using a cationic living polymer product or a terminal tert-chloride chain end of a carbocationic quasiliving polymer product, which comprises quenching the polymer product with a functionalized N-substituted pyrrole to thereby introduce the functionalized N-substituted pyrrole at the terminal reactive polymer chain end(s). A method is also disclosed whereby the N-substituent may be derivatized to a basic amine containing functional group. Also disclosed are the terminal functionalized polyisobuyl N-substituted pyrrole compounds where the polyisobutyl group is substituted at the 2 and 3 position of the N-substituted pyrrole.