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Supramolecular morphology of two-step melt-spun poly(dioxanone) fibers

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Abstract

Structure of poly(dioxanone) (PPDX) fibers produced through a two-step melt-spinning process with an additional short-period annealing above the melting temperature of PPDX was investigated and the effect of annealing on the degradation behavior was discussed. The morphological study carried out by etching the fibers using a phosphate or permanganate solution suggested that the fibers take a skin–core structure, and both the skin layer and the core region consist of a bundle of microfibrils. The micro-beam X-ray diffraction analysis revealed that the short-period annealing in the production process only slightly promotes the crystallization in the skin layer but contributes to increasing the packing of amorphous chains near the skin, which seems to be the controlling factor of the hydrolytic degradation behavior of the fibers.

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Authors and Affiliations

  1. Department of Biological & Chemical Engineering, Gunma University, 1-5-1, Tenjin-cho, Kiryu, Gunma, 376-8515, Japan

    Yutaka Kawahara & Atsushi Nakayama

  2. Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Tokyo, 152-8552, Japan

    Masatoshi Shioya

  3. Institute for Chemical Research, Kyoto University, Kyoto-fu, Uji, 611-0011, Japan

    Masaki Tsuji

  4. Department of Bio-based Materials Science, Kyoto Institute of Technology, Matsugasaki, Kyoto, 606-8585, Japan

    Hideki Yamane

  5. Department of Biomaterial Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan

    Tadahisa Iwata

Authors
  1. Yutaka Kawahara
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  2. Atsushi Nakayama
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  3. Masatoshi Shioya
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  4. Masaki Tsuji
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  5. Hideki Yamane
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  6. Tadahisa Iwata
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Correspondence to Yutaka Kawahara.

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Kawahara, Y., Nakayama, A., Shioya, M. et al. Supramolecular morphology of two-step melt-spun poly(dioxanone) fibers. J Mater Sci 47, 1887–1892 (2012). https://doi.org/10.1007/s10853-011-5977-7

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  • DOI: https://doi.org/10.1007/s10853-011-5977-7

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