
Proceedings Paper
Inter-crosslinking network gels having both shape memory and high ductilityFormat | Member Price | Non-Member Price |
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Paper Abstract
Medical treatment for injuries should be easy and quick in many accidents. Plasters or bandages are frequently
used to wrap and fix injured parts. If plasters or bandages have additional smart functions, such as cooling, removability
and repeatability, they will be much more useful and effective. Here we propose innovative biocompatible materials, that
is, nontoxic high-strength shape-memory gels as novel smart medical materials. These smart gels were prepared from
two monomers (DMAAm and SA), a polymer (HPC), and an inter-crosslinking agent (Karenz-MOI). In the synthesis of
the gels, 1) a shape-memory copolymer network is made from the DMAAm and the SA, and 2) the copolymer and the
HPC are crosslinked by the Karenz-MOI. Thus the crosslinking points are connected only between the different
polymers. This is our original technique of developing a new network structure of gels, named Inter-Crosslinking
Network (ICN). The ICN gels achieve high ductility, going up to 700% strain in tensile tests, while the ICN gels contain
about 44% water. Moreover the SA has temperature dependence due to its crystallization properties; thus the ICN gels
obtain shape memory properties and are named ICN-SMG. While the Young's modulus of the ICN-SMG is large below
their crystallization temperature and the gels behave like plastic materials, the modulus becomes smaller above the
temperature and the gels turn back to their original shape.
Paper Details
Date Published: 27 March 2012
PDF: 7 pages
Proc. SPIE 8341, Active and Passive Smart Structures and Integrated Systems 2012, 83412B (27 March 2012); doi: 10.1117/12.915090
Published in SPIE Proceedings Vol. 8341:
Active and Passive Smart Structures and Integrated Systems 2012
Henry A. Sodano, Editor(s)
PDF: 7 pages
Proc. SPIE 8341, Active and Passive Smart Structures and Integrated Systems 2012, 83412B (27 March 2012); doi: 10.1117/12.915090
Show Author Affiliations
Hidemitsu Furukawa, Yamagata Univ. (Japan)
Published in SPIE Proceedings Vol. 8341:
Active and Passive Smart Structures and Integrated Systems 2012
Henry A. Sodano, Editor(s)
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