Smart Hydrogels Developed with Inter-Crosslinking Network (ICN) Structure

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  • FURUKAWA Hidemitsu
    Soft & Wet matter Engineering Laboratory (SWEL), Department of Mechanical Systems Engineering, Graduate School of Science and Engineering, Yamagata University
  • HIDEMA Ruri
    Organization of Advanced Science and Technology, Kobe University
  • TAKADA Go
    Soft & Wet matter Engineering Laboratory (SWEL), Department of Mechanical Systems Engineering, Graduate School of Science and Engineering, Yamagata University
  • AMANO Yoshitaka
    Soft & Wet matter Engineering Laboratory (SWEL), Department of Mechanical Systems Engineering, Graduate School of Science and Engineering, Yamagata University
  • KABIR M. Hasnat
    Department of Information and Communication Engineering, University of Rajshahi Soft & Wet matter Engineering Laboratory (SWEL), Department of Mechanical Systems Engineering, Graduate School of Science and Engineering, Yamagata University
  • GONG Jin
    Soft & Wet matter Engineering Laboratory (SWEL), Department of Mechanical Systems Engineering, Graduate School of Science and Engineering, Yamagata University

Abstract

Hydrogels have low frictional properties, permeability and biocompatibility thanks to their high water content. However the problem of common gels is their brittleness as industrial materials. In the last decade, several high-strength gels have been developed, promising for applications of gels as new smart industrial materials. Here we study the smartness of novel ultrahigh ductile gels having Inter-Crosslinking Network (ICN), focusing on mechanical properties and structure. Three types of mesh densities of the ICN gels were experimentally determined from the size of internal structure, water content and Young's modulus of tensile test. By comparing the three mesh densities, the relation between the network structure and mechanical properties of the gels is possibly discussed. The new way to evaluate the ductility of the ICN gels was also introduced on the analogy of the small-world network model. The effect of the degree of polymerization on the ductility was discussed.

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