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Design, synthesis, and characterization of bismaleimide Co - curing elastomers / Karthik Vikram Siva Shanmugam in Industrial & engineering chemistry research, Vol. 51 N° 26 (Juillet 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 26 (Juillet 2012) . - pp. 8957–8965 Titre : Design, synthesis, and characterization of bismaleimide Co - curing elastomers Type de document : texte imprimé Auteurs : Karthik Vikram Siva Shanmugam, Auteur ; J. Scott Parent, Auteur ; Ralph A. Whitney, Auteur Année de publication : 2012 Article en page(s) : pp. 8957–8965 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Elastomers  Copolymerization Résumé : Isobutylene-rich elastomers bearing functional groups that engage N-arylmaleimides in C–H bond addition and/or alternating copolymerization are described. While inactive to cross-linking when treated at high temperature with peroxide alone, these co-curing elastomers can be cross-linked substantially when combined with bismaleimide coagents such as N,N′-m-phenylenedimaleimide (BMI). Poly(isobutylene-co-isoprene) (IIR) samples containing relatively high amounts of residual isoprene unsaturation are shown to provide relatively low coagent cure reactivity, whereas IIR derivatives bearing pendant polyether or vinyl ether functionality are shown to provide exceptional cross-linking rates and extents when treated with identical BMI formulations. The design of such co-curing elastomers is discussed, along with the physical properties of the resulting vulcanizates. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300795b [article] Design, synthesis, and characterization of bismaleimide Co - curing elastomers [texte imprimé] / Karthik Vikram Siva Shanmugam, Auteur ; J. Scott Parent, Auteur ; Ralph A. Whitney, Auteur . - 2012 . - pp. 8957–8965. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 26 (Juillet 2012) . - pp. 8957–8965 Mots-clés : Elastomers  Copolymerization Résumé : Isobutylene-rich elastomers bearing functional groups that engage N-arylmaleimides in C–H bond addition and/or alternating copolymerization are described. While inactive to cross-linking when treated at high temperature with peroxide alone, these co-curing elastomers can be cross-linked substantially when combined with bismaleimide coagents such as N,N′-m-phenylenedimaleimide (BMI). Poly(isobutylene-co-isoprene) (IIR) samples containing relatively high amounts of residual isoprene unsaturation are shown to provide relatively low coagent cure reactivity, whereas IIR derivatives bearing pendant polyether or vinyl ether functionality are shown to provide exceptional cross-linking rates and extents when treated with identical BMI formulations. The design of such co-curing elastomers is discussed, along with the physical properties of the resulting vulcanizates. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300795b