Morphology and Properties of Segmented Polyether Poly(urethane-urea-amide)

Polymer Journal volume 17, pages969–975(1985)Cite this article

Abstract

Segmented polyether poly(urethane-urea-amide) (PEUUA)s containing poly(propylene oxide) (PPO) segments of various molecular weights were synthesized and their morphology and properties were characterized in comparison with the conventional segmented polyether poly(urethane-urea) (PEUU). PEUUAs consisted of two incompatible segments, soft segments with the repeating units of PPO and urethane group, and hard segments composed of urea and amide groups. Characterization of PEUUA was carried out by small-angle X-ray scattering, dynamic mechanical, tensile, and hysteresis measurements. A comparison of PEUUA and PEUU indicated that PEUUA had higher mechanical strength and hysteresis values. These favorable features were considered due to the hard domains composed of strongly hydrogen bonded segments dispersed in the matrix of the soft segments, resulting in hard domain interconnectivity.

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Affiliations

  1. Department of Chemistry, Faculty of Science and Technology, Sophia University

    Nobuhiko Yui, Kazuhiko Nojima, Kohei Sanui & Naoya Ogata

Authors
  1. Nobuhiko Yui
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  2. Kazuhiko Nojima
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  3. Kohei Sanui
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  4. Naoya Ogata
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Yui, N., Nojima, K., Sanui, K. et al. Morphology and Properties of Segmented Polyether Poly(urethane-urea-amide). Polym J 17, 969–975 (1985). https://doi.org/10.1295/polymj.17.969

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Keywords

  • Segmented Polymer
  • Microphase-Separated Structure
  • Long Period
  • Mechanical Strength
  • Hysteresis

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