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Structure and Properties of High Performance Gels Made by Module Assembling Method

Published online by Cambridge University Press:  12 January 2012

Mitsuhiro Shibayama ,
Hanako Asai ,
Kenta Fujii ,
Yuki Akagi  and
Takamasa Sakai
Mitsuhiro Shibayama
Affiliation:
Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba, Japan.
Hanako Asai
Affiliation:
Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba, Japan.
Kenta Fujii
Affiliation:
Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba, Japan.
Yuki Akagi
Affiliation:
Department of Bioengineering, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
Takamasa Sakai
Affiliation:
Department of Bioengineering, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
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Abstract

High performance polymer network gels consisting of tetra-arm poly(ethyleneglycol) (Tetra-PEG) gels were fabricated via a module assembling method and their mechanical properties and structure were investigated by stretching and compression measurements, dynamic mechanical measurements, and small-angle neutron scattering (SANS). It was found that Tetra-PEG gels are nearly-ideal polymer network with negligible fractions of defects and entanglements. SANS intensity functions indicated that the network structure was uniform free from spatial inhomogeneities. It is deduced that this uniform structure is ascribed to its unique preparation method, i.e., module assembling method (cross-end-coupling of tetra-functional macromers with complementary functional groups). Characteristic properties originated from the near-ideality as polymer networks are demonstrated, including its application to ion gels, i.e., polymer network in ionic liquid.

Keywords

polymerneutron scatteringmacromolecular structure
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1418: Symposium LL/MM – Gels and Biomedical Materials , 2012 , mrsf11-1418-ll08-02
Copyright
Copyright © Materials Research Society 2012

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References

REFERENCES

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