HYDROBORATION/OXIDATION OF ALLYL-TERMINATED POLYISOBUTYLENE

• Main Authors: RO, Andrew J, WILLOUGHBY, Patrick, DELANEY, Joseph T. Jr, GURUNG, Niraj
• Format: Patent
• Language: English; French
• Published: 13.09.2018
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

A method for making a polyisobutylene diol from a polyisobutylene diallyl. The method includes hydroborating the polyisobutylene diallyl to produce a polyisobutylene dialkyl borane, and oxidizing the polyisobutylene dialkyl borane to form the polyisobutylene diol. The polyisobutylene diallyl is hydroborated by combining in situ the polyisobutylene diallyl with a borane-coordinating solvent, an alkaline metal salt of borohydride, and an acid. The alkaline metal salt of borohydride is combined with the polyisobutylene diallyl before the acid is combined with the polyisobutylene diallyl. La présente invention concerne un procédé de fabrication d'un polyisobutylène diol à partir d'un polyisobutylène diallyle. Le procédé comprend l'hydroboration du polyisobutylène diallyle pour produire un polyisobutylène dialkyl borane, et l'oxydation du polyisobutylène dialkyl borane pour former le polyisobutylène diol. Le polyisobutylène diallyle est hydroboré par combinaison in situ du polyisobutylène diallyle avec un solvant de coordination borane, un sel de métal alcalin d'hydrure de bore, et un acide. Le sel de métal alcalin d'hydrure de bore est combiné au polyisobutylène diallyle avant que l'acide soit combiné au polyisobutylène diallyle.