Study of Interaction between Sodium Dodecyl Sulfate and Polyacrylamide by Rheological and Conductivity Measurements

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• 作者：Mingtan Hai ; Buxing Han
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2006
• 出版时间：September 2006
• 年：2006
• 卷：51
• 期：5
• 页码：1498 - 1501
• 全文大小：44K
• 年卷期：v.51,no.5(September 2006)
• ISSN：1520-5134

文摘

The interaction between sodium dodecyl sulfate (SDS) and nonionic polymer polyacrylamide (PAM) wasinvestigated by viscosity and conductivity measurements at 298 K. The experimental results show that the criticalaggregation concentration (CAC) value of SDS + 1 % mass fraction PAM only decreases a little as comparedwith the value of critical micelle concentration (CMC) of the surfactant SDS. The maximum viscosity of SDS +1 % mass fraction PAM indicated that PAM chain extended at the binding site. When SDS concentration isabove the CAC, the viscosity of SDS + 1 wt % PAM decreases reflecting the contraction of polymer PAMchains. The free energy of polymer-bound micelle is negative, indicating a strong interaction between SDS andPAM.