Equilibrium anionic ring-opening polymerization of a six-membered cyclosiloxazane
BROCHON, Cyril
Laboratoire de Chimie des polymères organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
Laboratoire de Chimie des polymères organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
MINGOTAUD, Anne-Françoise
Laboratoire de Chimie des polymères organiques [LCPO]
Interactions moléculaires et réactivité chimique et photochimique [IMRCP]
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Laboratoire de Chimie des polymères organiques [LCPO]
Interactions moléculaires et réactivité chimique et photochimique [IMRCP]
BROCHON, Cyril
Laboratoire de Chimie des polymères organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
Laboratoire de Chimie des polymères organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
MINGOTAUD, Anne-Françoise
Laboratoire de Chimie des polymères organiques [LCPO]
Interactions moléculaires et réactivité chimique et photochimique [IMRCP]
Laboratoire de Chimie des polymères organiques [LCPO]
Interactions moléculaires et réactivité chimique et photochimique [IMRCP]
SOUM, Alain
Laboratoire de Chimie des polymères organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
< Leer menos
Laboratoire de Chimie des polymères organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
Idioma
en
Article de revue
Este ítem está publicado en
International Journal of Biological Macromolecules. 2007, vol. 40, n° 10, p. 3547-3553
Elsevier
Resumen en inglés
The anionic ring-opening polymerization of heptamethyl-1,3-dioxa-5-aza-2,4,6-trisilacyclohexane, initiated with organolithium compounds, has been investigated. With the addition of dimethylformamide (DMF), the polymerization ...Leer más >
The anionic ring-opening polymerization of heptamethyl-1,3-dioxa-5-aza-2,4,6-trisilacyclohexane, initiated with organolithium compounds, has been investigated. With the addition of dimethylformamide (DMF), the polymerization is controlled. Backbiting reactions are limited and give a unique specific cyclic compound in low proportion. Thermodynamic and kinetic studies indicate that such polymerization is equilibrated. The apparent rate constants of propagation and depolymerization along with the thermodynamic parameters (enthalpy and entropy) of the polymerization have been calculated. The active species are ion pairs externally solvated by DMF in equilibrium with unreactive aggregated ion pairs.< Leer menos
Palabras clave en inglés
CYCLODISILAZANES
KINETICS
GENERAL-ASPECTS
Orígen
Importado de HalCentros de investigación