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Citation: CAI Li-bo, ZUO Ju, TANG Shuo. A Study on the Noner dic Behavior of κ-carrageenan Thermoreversible Gel by Static and Dynamic Light Scattering[J]. Acta Physico-Chimica Sinica, ;2005, 21(10): 1108-1112. doi: 10.3866/PKU.WHXB20051009 shu

A Study on the Noner dic Behavior of κ-carrageenan Thermoreversible Gel by Static and Dynamic Light Scattering

1.
Department of Chemistry, Education Ministry Key Laboratory of Functional Polymer Materials for Adsorption and Separation, Nankai University, Tianjin 300071

Received Date: 26 January 2005
Available Online: 15 October 2005

The noner dic behavior of κ-carrageenan(KC) thermoreversible gel was studied by static/dynamic light scattering (SLS/DLS). The speckle patterns, measured by SLS, appear in gel state of KC, which proves the noner dic behavior of KC gel. Then the influences of temperature and concentration of KC solution on the noner dic behavior were investigated. The results reveal that the noner dic behavior of KC solution enhances with increasing of concentration, and weakens with increasing of temperature. Moreover, noner dic behavior disappears when the temperature is higher than the one at which the transition from helix to coil conformation can be performed. The electrical field correlation function obtained by DLS shows that the gel state of KC possesses a power law behavior but the solution state of KC bears a stretched exponential behavior.
- κ-carrageenan;Noner dic behavior;Fluctuation
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