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  1. Article

    Open Access

    Tensile strength of polyester fiber estimated by molecular-chain extension prior to structure formation

    The combination of laser irradiation heating and synchrotron X-ray sources has made it possible to observe the fiber-structure development that occurs at sub-millisecond timescales after necking during continu...

    Ren Tomisawa, Mutsuya Nagata, Yumu Otsuka, Toshifumi Ikaga in Scientific Reports (2023)

  2. No Access

    Article

    Ultra-SAXS observation of fibril-sized structure formation after the necking of poly(ethylene terephthalate) and poly(phenylene sulfide) fibers

    Fibril-sized structures, which exhibit a density fluctuation of several tens to hundreds of nanometers, are important because they influence many properties of fibers and films, particularly the strength and t...

    Ren Tomisawa, Takumi Ando, Toshifumi Ikaga, Kyounghou Kim in Polymer Journal (2019)