### 抜粋

The scaling law derived from the percolation theory was applied to the concentration dependence of mechanical properties of polyacrylamide measured near the sol–gel transition point. The critical concentration of the sol–gel transition, ϕ_{g}, was estimated from the plot of concentration (ϕ) vs. the reciprocal of viscosity (η) by extrapolating 1/η to zero. The critical exponent for the sol viscosity, s, which was estimated from the slope of the log(ϕ_{g}–ϕ) vs. log η plot was about 0.7. The estimated value of s was similar to the value predicted by the percolation theory based on the superconductor–normal conductor mixture model. The critical exponent for the gel elasticity, t, as estimated from the slope of the log(ϕ–ϕ_{g}) vs. log G′ plot, where G′ was the dynamic shear modulus of the gel at a frequency of 2Hz. The value of t was about 2, which was also similar to the value predicted by the percolation theory. These results indicated the at the concentration dependences of η and G′ of polyacrylamide near the sol–gel transition point were described by the percolation theory.

元の言語 | English |
---|---|

ページ（範囲） | 528-531 |

ページ数 | 4 |

ジャーナル | Bioscience, Biotechnology and Biochemistry |

巻 | 57 |

発行部数 | 4 |

DOI | |

出版物ステータス | Published - 1993 1 |

外部発表 | Yes |

### ASJC Scopus subject areas

- Biotechnology
- Analytical Chemistry
- Biochemistry
- Applied Microbiology and Biotechnology
- Molecular Biology
- Organic Chemistry

## フィンガープリント Concentration dependence of mechanical properties of polyacrylamide near the sol-gel transition point' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

## これを引用

*Bioscience, Biotechnology and Biochemistry*,

*57*(4), 528-531. https://doi.org/10.1271/bbb.57.528