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Showing 1–5 of 5 results
Advanced filters: Author: Jeffrey Pyun Clear advanced filters

  • Polymers typically exhibit rheology with multiple relaxation times to fully capture stress relaxation processes to terminal flow. Here, the authors use inverse vulcanization to synthesize polymers that exhibit a single relaxation time due to dynamic covalent disulfide bond reorganization that dominate the rheological properties of these materials.

    • Derek J. Bischoff
    • Taeheon Lee
    • Michael E. Mackay
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-11

  • A polymerization method for converting elemental sulfur into a chemically stable, processable and electrochemically active copolymer has been described. This methodology — termed inverse vulcanization — is conducted by a one-step process using liquid sulfur, as both reaction medium and reactant, and vinylic comonomers to form polymeric materials with a high content of sulfur (50–90 wt%).

    • Woo Jin Chung
    • Jared J. Griebel
    • Jeffrey Pyun
    Research
    Nature Chemistry
    Volume: 5, P: 518-524

  • The development of synthetic strategies enabling the fabrication of well-defined polymer–biomolecule conjugates, together with advances in top-down nanofabrication, are two highlights from a recent meeting of polymer scientists.

    • Jeffrey Pyun
    News & Views
    Nature Materials
    Volume: 11, P: 753-754

  • Graphene quantum dots (GQDs) decorated sulfur–carbon hierarchical structure serve as a high sulfur/sulfide utilization in Li–S battery. The oxygen rich functionalities of the GQDs induced structural integrity of the sulfur–carbon electrode composite. This hierarchical structure enables fast charge transfer, minimizes the loss of soluble polysulfides and completes reaction of sulfur/sulfide.

    • Jungjin Park
    • Joonhee Moon
    • Yung-Eun Sung
    ResearchOpen Access
    NPG Asia Materials
    Volume: 8, P: e272