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Colloid and Polymer Science

, Volume 297, Issue 4, pp 587–594 | Cite as

Poly(N,N-dimethylacrylamide)-clay nanocomposite hydrogels with patterned mechanical properties

  • Yasuyuki MakiEmail author
Original Contribution
  • 83 Downloads

Abstract

Poly(N,N-dimethylacrylamide)-clay nanocomposite gels (NC gels) with patterned network-chain density were prepared by photoinitiated radical polymerization with photomasks. The exposed region of the obtained gels showed a higher swelling ratio and lower elastic modulus than the masked region, although these regions had the same weight composition. A stripe-patterned gel prepared using a photomask with many slits of several hundred micrometers wide exhibited mechanical anisotropy: the elastic modulus in the direction parallel to the slits was higher than that in the perpendicular direction.

Keywords

Hydrogel Clay Nanocomposite Photolithography 

Notes

Acknowledgements

A part of this work was conducted in Tsukuba University, supported by Nanotechnology Platform Program of Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. The author is grateful to Professor T. Dobashi for useful advice and to Mr. K. Ishizaka, Mr. S. Yasuraoka, and Ms. M. Yamada for their contribution to the experiments.

Funding information

This study was partly funded by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) and by Japan Society for the Promotion of Science (JSPS KAKENHI) (Grants-in-Aid for Scientific Research) Grant Number 16H04031.

Compliance with ethical standards

Conflict of interest

The author declares that he has no conflict of interest.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Division of Molecular Science, Graduate School of Science and TechnologyGunma UniversityKiryuJapan
  2. 2.Department of Chemistry, Faculty of ScienceKyushu UniversityFukuokaJapan

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