화학공학소재연구정보센터
Langmuir, Vol.18, No.4, 987-991, 2002
Dynamic rheology of sodium deoxycholate gels
A dynamic rheological study of sodium deoxycholate gels was carried out within the linear viscoelastic region. The effects of the oscillatory frequency f, sodium deoxycholate concentration, pH, temperature, and ionic strength (NaCl) were studied. The G' proportional to f(n) relationship, the creep-recovery experiments, and the frequency-temperature superposition principle strongly suggest that the interactions in the gel are physical in nature and that its mechanical behavior can be explained by a simple relaxation mechanism. It is concluded that the hydrogen bonds are the molecular forces involved in the formation, relaxation, and strength of the gel.