Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-23T10:44:24.310Z Has data issue: false hasContentIssue false
  • English
  • Français

Switching of Water Flow Through Stimuli-responsive Hydrogels

Published online by Cambridge University Press:  01 February 2011

Atsushi Suzuki  and
Go Kondo
Atsushi Suzuki
Affiliation:
[email protected], Yokohama National University, Faculty of Environment and Information Sciences, 79-7 Tokiwadai, Hodogaya-ku, Yokohama, 240-8501, Japan, +81-45-339-3846, +81-45-339-3846
Go Kondo
Affiliation:
[email protected], Yokohama National University, Faculty of Environment and Information Sciences, 79-7 Tokiwadai, Hodogaya-ku, Yokohama, 240-8501, Japan, +81-45-339-3846, +81-45-339-3846
Get access

Abstract

The friction between the polymer network and the solvent water was measured by a newly designed simple apparatus where the hydrogel was mechanically constrained in a glass microcapillary. The water-flow through the hydrogel could be continuously controlled by more than ten times only by adjusting the temperature in the vicinity of the transition temperature (around the human body temperature). The concentration of polymer network and cross-linker as well as the inhomogeneity of polymer networks introduced at gelation was found to determine the overall flow velocity and the amount of change during the phase transition could be controlled by the temperature change. The principle to control the solvent flow will be discussed on the basis of the material parameters and the experimental conditions.

Keywords

phase transformationpolymerfluidics
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 947: Symposium A – Responsive Soft Matter – Chemistry and Physics for Assemblages, Films and Forms , 2006 , 0947-09-02
Copyright
Copyright © Materials Research Society 2007

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Dusek, K. and Patterson, D., J. Polym. Sci., 6, 1209 (1968).Google Scholar
2. Tanaka, T., Phys. Rev. Lett., 40, 820 (1978).Google Scholar
3. Hecht, A. M. and Geissler, E., J. Chem. Phys., 73, 4077 (1980).Google Scholar
4. Hecht, A. M. and Geissler, E., Polymer, 21, 1358 (1980).Google Scholar
5. Geissler, E. and Hecht, A. M., J. Chem. Phys., 77, 1548 (1982).Google Scholar
6. Tokita, M. and Tanaka, T., Science, 253, 1121 (1991).Google Scholar
7. Tokita, M. and Tanaka, T., J. Chem. Phys., 95, 4613 (1991).Google Scholar
8. Yoshikawa, M., Ishii, R., Matsui, J., Suzuki, A. and Tokita, M., Jpn. J. Appl. Phys., 44, Part 1, 8196 (2005).Google Scholar
9. Suzuki, A. and Yoshikawa, M., J. Chem. Phys., 125, 174901 (2006).Google Scholar
10. Doi, Y. and Tokita, M., Langmuir, 21, 5285 (2005).Google Scholar
11. Suzuki, A., Yamazaki, M., Kobiki, Y. and Suzuki, H., Macromolecules, 30, 2350 (1997).Google Scholar
12. Suzuki, A., Ejima, T., Kobiki, Y. and Suzuki, H., Langmuir, 13, 7039 (1997).Google Scholar
13. Suzuki, A. and Hara, T.: J. Chem. Phys., 114, 5012 (2001).Google Scholar
14. Tanaka, T. and Fillmore, D. J.: J. Chem. Phys., 70, 1214 (1979).Google Scholar