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Lateral cross-linking of polyurethane using isophorone diisocyanate and glycerol to control tensile and shape memory properties

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Abstract

Lateral cross-linking of polyurethane (PU) was used in this study to improve the tensile strength, thermal stability, and shape memory effect of PU. The hard segment in the middle of PU was used as the cross-linking site to attain high tensile stress and reproducible shape recovery without a significant decrease in tensile strain. Specifically, we investigated whether lateral cross-linking of PU using isophorone diisocyanate (IPDI) is feasible by linking the carbamate bonding or glycerol hydroxyl groups of PU. Therefore, the effects of the IPDI cross-linking site and the cross-linker content were examined by comparing the thermal, tensile, and shape memory properties as well as the cross-link density and water swelling with those of unmodified PU.

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Authors and Affiliations

  1. Department of Chemistry, The University of Suwon, Hwaseong, 18323, Korea

    Yong-Chan Chung

  2. School of Nano Engineering, Inje University, Gimhae, 50843, Korea

    Samsook Han, Ha Youn Kim & Byoung Chul Chun

Authors
  1. Yong-Chan Chung
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  2. Samsook Han
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  3. Ha Youn Kim
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  4. Byoung Chul Chun
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Chung, YC., Han, S., Kim, H.Y. et al. Lateral cross-linking of polyurethane using isophorone diisocyanate and glycerol to control tensile and shape memory properties. Fibers Polym 17, 1311–1316 (2016). https://doi.org/10.1007/s12221-016-6482-z

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  • DOI: https://doi.org/10.1007/s12221-016-6482-z

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