Perpendicular Lamellae in Parallel Lamellae in a Hierarchical CECEC-P Hexablock Terpolymer
FLEURY, Guillaume
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
FLEURY, Guillaume
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
< Réduire
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
Langue
en
Article de revue
Ce document a été publié dans
Macromolecules. 2009, vol. 42, n° 5, p. 1691-1694
American Chemical Society
Résumé en anglais
We describe the synthesis and phase behavior of a nearly monodisperse poly(cyclohexylethylene-b-ethylene-b-cyclohexylethylene-b-ethylene-b-cyclohexylethylene-b-ethylene-alt-propylene) (CECEC-P) hexablock terpolymer, ...Lire la suite >
We describe the synthesis and phase behavior of a nearly monodisperse poly(cyclohexylethylene-b-ethylene-b-cyclohexylethylene-b-ethylene-b-cyclohexylethylene-b-ethylene-alt-propylene) (CECEC-P) hexablock terpolymer, synthesized by sequential anionic polymerization followed by catalytic hydrogenation. This multiblock copolymer, which contains equal volume fractions of P and compositionally symmetric CECEC, microphase separates through chemical incompatibility between C, E, and P and exhibits a complex morphology with two different length scales related to the local (C-E) and overall (C-E-P) sequences. We have identified a perpendicular lamellae in parallel lamellae mesostructure in the CECEC-P sample; where layers of rubbery P separate sheets of alternating layers of semicrystalline E and glassy C, arranged perpendicular to the larger overall lamellar structure.< Réduire
Mots clés en anglais
BLOCK-COPOLYMERS
ANIONIC-POLYMERIZATION
MICRODOMAIN STRUCTURE
TRIBLOCK COPOLYMER
BRANCHED POLYMERS
REPEATING UNIT
MORPHOLOGY
BEHAVIOR
POLYSTYRENES
Origine
Importé de halUnités de recherche