title: Supramolecular thermoplastic with 0.5 Pa·s melt viscosity.
abstract: Design of materials with polymer-like properties at service temperature but able to flow like simple liquids when heated remains one of the important challenges of supramolecular chemistry. Combining these antagonistic properties is highly desirable to provide durability, processability, and recyclability of materials. Here, we explore a new strategy based on polycondensation reactions to design supramolecular polymer materials with stress at break above 10 MPa and melt viscosity lower than 1 Pa·s. We report the synthesis and rheological and mechanical properties (uniaxial tensile tests) of supramolecular polymers based on a multiblock polyamide architecture. The flexibility of polycondensation reactions made it possible to control the molecular size distribution, the strength of hydrogen bonds, and the crystallization of middle and end groups and to achieve targeted properties.
authors: Matière Molle et Chimie (UMR 7167 ESPCI-CNRS), Ecole Supérieure de Physique et Chimie Industrielles de la Ville de Paris (ESPCI ParisTech), 10 rue Vauquelin, 75005 Paris, France.
authors: Réda
authors: R
authors: Agnaou
authors: Mathieu
authors: M
authors: Capelot
authors: Sylvie
authors: S
authors: Tencé-Girault
authors: François
authors: F
authors: Tournilhac
authors: Ludwik
authors: L
authors: Leibler