Phase-transfer catalyzed esterification of brominated poly(isobutylene-co-isoprene) / J. Keith McLean in Industrial & engineering chemistry research, Vol. 48 N° 24 (Décembre 2009)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 48 N° 24 (Décembre 2009) . - pp. 10759–10764 Titre : Phase-transfer catalyzed esterification of brominated poly(isobutylene-co-isoprene) Type de document : texte imprimé Auteurs : J. Keith McLean, Auteur ; Sergio A. Guillén-Castellanos, Auteur ; J. Scott Parent, Auteur Année de publication : 2010 Article en page(s) : pp. 10759–10764 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : 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 [article] Phase-transfer catalyzed esterification of brominated poly(isobutylene-co-isoprene) [texte imprimé] / J. Keith McLean, Auteur ; Sergio A. Guillén-Castellanos, Auteur ; J. Scott Parent, Auteur . - 2010 . - pp. 10759–10764. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 24 (Décembre 2009) . - pp. 10759–10764 Mots-clés : 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

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Phase-transfer catalyzed esterification of brominated poly(isobutylene-coisoprene) / J. Keith McLean in Industrial & engineering chemistry research, Vol. 48 N° 24 (Décembre 2009)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 48 N° 24 (Décembre 2009) . - pp. 10759–10764 Titre : Phase-transfer catalyzed esterification of brominated poly(isobutylene-coisoprene) Type de document : texte imprimé Auteurs : J. Keith McLean, Auteur ; Sergio A. Guillén-Castellanos, Auteur ; J. Scott Parent, Auteur Année de publication : 2010 Article en page(s) : pp. 10759–10764 Note générale : Industrial chelistry Langues : Anglais (eng) Mots-clés : Phase-Transfer--Catalyzed--Esterification--Brominated--Poly--(Isobutylene-co-Isoprene) 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. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901284j [article] Phase-transfer catalyzed esterification of brominated poly(isobutylene-coisoprene) [texte imprimé] / J. Keith McLean, Auteur ; Sergio A. Guillén-Castellanos, Auteur ; J. Scott Parent, Auteur . - 2010 . - pp. 10759–10764. Industrial chelistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 24 (Décembre 2009) . - pp. 10759–10764 Mots-clés : Phase-Transfer--Catalyzed--Esterification--Brominated--Poly--(Isobutylene-co-Isoprene) 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. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901284j

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