Mechanical properties of a polymer network of Tetra-PEG gel

Asumi Sugimura, Makoto Asai, Takuro Matsunaga, Yuki Akagi, Takamasa Sakai, Hiroshi Noguchi, Mitsuhiro Shibayama

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21 Citations (Scopus)

Abstract

The elastic properties of Tetra-polyethylene glycol (PEG) gel, a four-armed PEG network gel, were studied by simulating the deformation of elastic networks containing defects that are randomly introduced to the network. This network model accurately reproduced the experimental results observed for Tetra-PEG gel. In particular, the stress-extension ratio curve of the gel prepared at chain-overlap concentration was in agreement with that of a regular network without defects. As the defect density increased, the Young's modulus decreased linearly. The fracture and spatial inhomogeneity of the networks were also investigated in the simulation.

Original languageEnglish
Pages (from-to)300-306
Number of pages7
JournalPolymer Journal
Volume45
Issue number3
DOIs
Publication statusPublished - 2013 Mar 1

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Keywords

  • Tetra-PEG gel
  • defect gel
  • large deformation
  • percolation
  • polymer gel

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

Cite this

Sugimura, A., Asai, M., Matsunaga, T., Akagi, Y., Sakai, T., Noguchi, H., & Shibayama, M. (2013). Mechanical properties of a polymer network of Tetra-PEG gel. Polymer Journal, 45(3), 300-306. https://doi.org/10.1038/pj.2012.149