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A new application of statistical moment theory to evaluate the swelling behavior of thermo-responsive gels

✍ Scribed by Yoshida, Masaru ;Asano, Masaharu ;Omichi, Hideki ;Miyajima, Masaharu ;Takahashi, Yasuo ;Yamanaka, Hidetoshi ;Yonezawa, Noriyuki ;Katakai, Ryoichi


Publisher
Wiley (John Wiley & Sons)
Year
1993
Weight
335 KB
Volume
2
Category
Article
ISSN
1018-5054

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✦ Synopsis


Abstract

The loosely cross‐linked poly(acryloyl‐L‐proline methyl ester) gel, which is known as one of the typical thermo‐responsive gels, shows a volume transition around approximately 14°C in pure water. This volume transition is shifted to higher temperature by treatment in aqueous sodium dodecyl sulfate (SDS). The analysis of the swelling‐temperature curve (frequency distribution) was performed according to a moment analysis, in which the area under the swelling‐temperature curve (AUC), mean swelling transition temperature (MSTT) and variance of swelling transition temperature (VSTT) were calculated. It is shown that the apparent volume transition temperature can be estimated from MSTT and that VSTT can be used to characterize the shape of the corresponding curves.