Synthesis of aliphatic polyamide bearing fluorinated groupsfrom e-caprolactam and modified cyclic lysine
CARLOTTI, Stéphane
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
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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
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
AMEDURI, Bruno
Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM ICMMM]
< Réduire
Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM ICMMM]
Langue
en
Article de revue
Ce document a été publié dans
European Polymer Journal. 2015, vol. 71, p. 575–584
Elsevier
Résumé en anglais
Aliphatic polyamide (PA) bearing fluorinated groups was synthesized in bulk withperfluorobutyryl-substituted a-amino-e-caprolactam and e-caprolactam by anionic ringopeningpolymerization (AROP). The fluorinated monomer was ...Lire la suite >
Aliphatic polyamide (PA) bearing fluorinated groups was synthesized in bulk withperfluorobutyryl-substituted a-amino-e-caprolactam and e-caprolactam by anionic ringopeningpolymerization (AROP). The fluorinated monomer was obtained by condensationbetween cyclic lysine (i.e. a-amino-e-caprolactam) and perfluorobutyryl chloride. Theeffect of the fluorinated monomer fraction onto the AROP of e-caprolactam was monitoredby the exothermicity of this polymerization versus time. The properties and characteristicsof the resulting polymers were studied by with differential scanning calorimetry,thermogravimetry, magic angle spinning NMR, FT-IR, and contact angle measurements.Polyamides bearing fluorinated groups exhibited better thermal stability than polyamide6 (PA6) as well as a higher hydrophobic surface character as evidenced by surface tensionmeasurements. The glass transition temperature of polyamide 6 was 53 C and rose to58 C for a PA bearing fluorinated moieties, while fluorinated monomer insertion induceda decrease of the melting points from 216 to 198 C. These copolymers displayed amaximum degradation temperature of 390 C as compared to the 310 C for PA6, and theirsurface energies decreased from 49.4 mN cm1 (PA6 value) to 44.1 mN cm1< Réduire
Mots clés en anglais
Surface energies
Magic angle spinning NMR
Perfluorobutyryl group
alpha-Amino-e-caprolactam
Aliphatic polyamide
Anionic ring-opening polymerization
Hydrophobic surface
Origine
Importé de halUnités de recherche