| Titre : | Phase-transfer catalyzed esterification of brominated poly(isobutylene-co-isoprene) (2010) |
| Auteurs : | J. Keith McLean, Auteur ; Sergio A. Guillén-Castellanos, Auteur ; J. Scott Parent, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 48 N° 24, Décembre 2009) |
| Article en page(s) : | pp. 10759–10764 |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| Tags : | Brominated poly(isobutylene-co-isoprene) Carboxylate nucleophiles Phase-transfer techniques |
| Résumé : | Phase-transfer techniques are used to activate carboxylate nucleophiles for the purpose of preparing ester derivatives of brominated poly(isobutylene-co-isoprene) (BIIR). Studies of the dynamics and yields of stearate ester syntheses reveal the dual role of tetrabutylammonium bromide, as it serves as a phase-transfer catalyst and a catalyst for the isomerization of exomethylene allylic bromide functionality to kinetically more reactive E,Z-BrMe isomers. Knowledge of reaction fundamentals are used to prepare copolymers from BIIR and carboxylate-terminated polybutadiene (cBR) that phase-partition in the manner required for blend compatibilization applications. |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie901284j |
