Surface tension of the polymer network of a gel

Takato Nakamura, Mineo Hattori, Hideya Kawasaki, Keiichi Miyamoto, Masayuki Tokita, Takashi Komai

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Abstract

The surface tension of poly(N-sopropylacrylamide) gel is measured as a function of temperature. It is found that the surface tension of the gel suddenly decreases as the gel undergoes the discontinuous volume phase transition. The surface tensions of the polymer network of the gel are evaluated on the basis of a simple theory. The results yield that the surface tension of the poly(N-isopropylacrylamide) gel is mainly determined by the area occupied by the polymer chain on the surface of the gel in most of the temperature regions. In addition, it is also found that the surface tension of the polymer network of the gel shows a singular behavior in the immediate vicinity of the volume phase transition temperature of the gel.

Original languageEnglish
Pages (from-to)1663-1668
Number of pages6
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume54
Issue number2
Publication statusPublished - Dec 1 1996

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All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • Condensed Matter Physics
  • Physics and Astronomy(all)

Cite this

Nakamura, T., Hattori, M., Kawasaki, H., Miyamoto, K., Tokita, M., & Komai, T. (1996). Surface tension of the polymer network of a gel. Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 54(2), 1663-1668.