A New Insight Into the Mechanism of the Ring-Opening Polymerization of Trimethylene Carbonate Catalyzed by Methanesulfonic Acid - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Macromolecular Chemistry and Physics Année : 2013

A New Insight Into the Mechanism of the Ring-Opening Polymerization of Trimethylene Carbonate Catalyzed by Methanesulfonic Acid

Résumé

The ring-opening polymerization (ROP) of trimethylene carbonate (TMC) initiated by a monoalcohol and catalyzed by CH3SO3H is investigated, in an effort to reveal extra features of the known activated monomer/active chain-end (AM/ACE) combined mechanism. Size-exclusion chromatography (SEC) profiles obtained with high-molar-mass samples show a poly(trimethylene carbonate) (PTMC) fraction generated by AM/ACE with a molar mass that is exactly twice that of the PTMC fraction coming from pure AM. Conversely, PTMC prepared with a diol is perfectly unimodal and keeps its molar mass dispersity below 1.1. This suggests that the side AM/ACE mechanism may be a bidirectional AM mechanism, and that PTMC with a narrow unimodal molar-mass distribution can be obtained easily from a diol regardless of this side propagation.
Fichier non déposé

Dates et versions

hal-00818337 , version 1 (26-04-2013)

Identifiants

  • HAL Id : hal-00818337 , version 1

Citer

Joao M. Campos, Maria Rosario Ribeiro, Maria Filipa Ribeiro, Alain Deffieux, Frédéric Peruch. A New Insight Into the Mechanism of the Ring-Opening Polymerization of Trimethylene Carbonate Catalyzed by Methanesulfonic Acid. Macromolecular Chemistry and Physics, 2013, 214 (1), pp.85-93. ⟨hal-00818337⟩

Collections

CNRS INC-CNRS LCPO
104 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More