Controlled synthesis of crosslinked polyamide 6 using a bis-monomer derived from cyclized lysine
DEFFIEUX, Alain
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
CARLOTTI, Stéphane
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
Polymer. 2014, vol. 55, n° 23, p. 5991-5997
Elsevier
Resumen en inglés
The controlled synthesis of polyamide 6 chemical networks by anionic ring-opening copolymerization of epsilon-caprolactam (CL) with synthesized bis-epsilon-caprolactam derived from alpha-amino-epsilon-caprolactam, i.e. ...Leer más >
The controlled synthesis of polyamide 6 chemical networks by anionic ring-opening copolymerization of epsilon-caprolactam (CL) with synthesized bis-epsilon-caprolactam derived from alpha-amino-epsilon-caprolactam, i.e. N-functionalized alpha-amino-epsilon-caprolactam bis-monomers, using sodium epsilon-caprolactamate as an initiator and hexamethylene-1,6-dicarbamoylcaprolactam as di-functional fast activator was examined in bulk at 140 degrees C. An urea-based bis-monomer and CL were first shown to copolymerize with a decreasing polymerization rate due to side reactions. On the contrary, quantitative copolymerization of CL with various amounts of bis-N(2-oxo-3-azepanyl)-1,6-tetramethylenediamide, an amide-based bis-monomer, leads to fast kinetics similar to the homopolymerization of CL Crosslinked PA6 with network exhibiting elastic or viscoelastic behaviors, depending on the amount of crosslinker, were observed and characterized by swelling in hexafluoroisopropanol, dynamic mechanical analysis and rheology measurements. Crystallinity and swelling were shown to decrease with the increasing content of the crosslinking agent.< Leer menos
Palabras clave en inglés
LACTAMS
RIM
Anionic ring-opening polymerization
alpha-Amino-epsilon-caprolactam
ACTIVATED ANIONIC-POLYMERIZATION
RING-OPENING POLYMERIZATION
EPSILON-CAPROLACTAM
6-CAPROLACTAM
Orígen
Importado de HalCentros de investigación