Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Synthesis and Characteristics of 2 Step-curable Shape Memory Polyurethane

2단계 경화형 형상기억 폴리우레탄의 합성 및 분석

  • Noh, Geon Ho (Department of Polymer Engineering, Pukyong National University) ;
  • Lee, Seungjae (Department of Polymer Engineering, Pukyong National University) ;
  • Bae, Seong-Guk (Korea Institute of Footwear & Leather Technology) ;
  • Jang, Seong-Ho (Department of Bioenviromental Energy, Pusan National University) ;
  • Lee, Won-Ki (Department of Polymer Engineering, Pukyong National University)
  • 노건호 (부경대학교 고분자공학과) ;
  • 이승재 (부경대학교 고분자공학과) ;
  • 배성국 (한국신발피혁연구원) ;
  • 장성호 (부산대학교 바이오환경에너지학과) ;
  • 이원기 (부경대학교 고분자공학과)
  • Received : 2018.07.16
  • Accepted : 2018.09.12
  • Published : 2018.11.30
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Abstract

Shape memory materials are widely used in high-tech industries. Although shape memory polymers have been developed, they have a disadvantage, only unidirectional resilience. Shape memory polymers with bi-directional recovery resilience have been actively studied. In this study, a bidirectional shape memory polyurethane was synthesized using poly(${\varepsilon}$-caprolactone) diol, methylene dicyclohexyl diisocyanate, and hydroxyethyl acrylate. The first physical curing occurred between hard segments and hydrogen bondings when the solution was dried. The second curing in acrylate groups was performed by UV exposure. A degree of curing was analyzed by infrared spectroscopy. The shape memory properties of 2 step-cured polyurethanes were investigated as a function of UV curing time.

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References

  1. Fremond, M., 1996, Shape memory alloy. In Shape memory alloys, Springer, Vienna, 1-68.
  2. Huang, Y. P., Xu, X., Luo, X. L., Ma, D. Z., 2002, Molecular weight dependence of the melting behavior of poly(${\varepsilon}$-caprolactone), 20, 45-51.
  3. Hu, J. L., 2007, Shape memory polymers and textiles. Introduction, CRC Press LLC, 1-12.
  4. Kleinhans, G., Heidenhain, F., 1986, Actively moving polymers, 76, 1069-1073.
  5. Lendlein, A., Jiang, H. Y., Junger, O., Langer, R., 2005, Lightinduced shape-memory polymers, Nature (London), 434, 879-882. https://doi.org/10.1038/nature03496
  6. Leng, J. S., Du, S. Y., 2010, Shape memory polymer and multifunctional composite. In: Jiang, H. Y., Schmidt, A., The structural variety of shape memory polymers, CRC Press LLC, 21-64.
  7. Meng, Y., Jiang, J., Anthamatten, M., 2015, Shape actuation via internal stress-induced crystallization of dual-cure networks, ACS Macro Letters, 4, 115-118. https://doi.org/10.1021/mz500773v
  8. Miaudet, P., Derre, A., Maugey, M., Zakri, C., Piccione, P. M., Inoubli, R., et al., 2007, Shape and temperature memory of nanocomposites with broadened glass transition, Science, 318, 1294-1296. https://doi.org/10.1126/science.1145593
  9. Ping, P., Wang, W., Chen, X., Jing, X., 2005, Poly (${\varepsilon}$ -caprolactone) polyurethane and its shape-memory property, Biomacromolecules, 6, 587-592. https://doi.org/10.1021/bm049477j
  10. Singh, N. K., Lesser, A. J., 2010, Mechanical and thermo mechanical studies of double networks based on thermoplastic elastomers, J. Polym. Sci. Part B: Polym. Phys., 48, 778-789. https://doi.org/10.1002/polb.21943
  11. Yang, B., Huang, W. M., Li, C., Li, L., 2006, Effects of moisture on the thermomechanical properties of a polyurethane shape memory polymer, Polymer, 47, 1348-1356. https://doi.org/10.1016/j.polymer.2005.12.051
  12. Zotzmann, J., Behl, M., Hofmann, D., Lendlein, A., 2010, Reversible Triple Shape Effect of Polymer Networks Containing Polypentadecalactone-and Poly (${\varepsilon}$-caprolactone)-Segments, Adv. Mater., 22, 3424- 3429. https://doi.org/10.1002/adma.200904202