Logo JG-Universität MainzProf. Dr. Axel Müller


515. Bahrami, R.; Löbling, T.I.; Schmalz, H.; Müller, A.H.E.; Altstädt, V.: Synergistic Effects on Toughness of Immiscible Polymer Blends Compatibilized with Janus Particles and Triblock Terpolymers, Polymer 109, 229-237 (2017) -- DOI: 10.1016/j.polymer.2016.12.044

By influencing both the interfacial adhesion and the morphology, compatibilizers determine the mechanical properties of polymer blends. Here, we study the mechanical properties, in particular the fatigue crack propagation (FCP) of immiscible blends of poly(2,6-dimethyl-1,4-phenylene ether)/poly(styrene-co-acrylonitrile) (PPE/SAN), compatibilized with Janus nanoparticles (JPs) and polystyrene-block-polybutadiene-block-poly(methyl methacrylate) (SBM) linear triblock terpolymers. Synergistic effects of a mixture of both compatibilizers improve the FCP behavior and reveal the important role of interface stiffness and flexibility on the mechanical properties of polymer blends. The triblock terpolymer and JPs allow at the same time an elastic and stiff linkage at the blend interface and induce multiple deformation mechanisms such as crack bridging and matrix fibrillation that can dissipate energy and contribute to an improved FCP behavior. The presented concept allows tailoring macro-mechanical properties of immiscible polymer blends by adjusting blend morphology and interfacial properties.

There are additional file downloads belonging to this publication


powered by php + PostgreSQL - last modified 2017-02-02- Impressum