Synergistic effects of Janus particles and triblock terpolymers on toughness of immiscible polymer blends

Ronak Bahrami, Tina I. Löbling, Holger Schmalz*, Axel H E Müller, Volker Altstädt

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

24 Citations (Scopus)

Abstract

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 linear polystyrene-block-polybutadiene-block-poly(methyl methacrylate) (SBM) 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.

Original languageEnglish
Pages (from-to)229-237
Number of pages9
JournalPolymer
Volume109
DOIs
Publication statusPublished - 27 Jan 2017
MoE publication typeA1 Journal article-refereed

Keywords

  • Compatibilization
  • Fracture toughness
  • Janus particles
  • Micromechanics
  • Polymer blends

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