Microcalorimetric Studies on the Critical Micelle Concentration and Thermodynamic Functions of the Poly(oxyethylene) Lauryl Ether and Poly(oxyethylene glycol) Octylphenyl Ether in N,N-Di

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• 作者：Honglin Zhang ; Ke Zhang ; Changqing Kong ; Shujuan Yang ; Ganzuo Li ; Li Yu
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2010
• 出版时间：June 10, 2010
• 年：2010
• 卷：55
• 期：6
• 页码：2284-2288
• 全文大小：154K
• 年卷期：v.55,no.6(June 10, 2010)
• ISSN：1520-5134

文摘

The power−time curves of the micelle formation process are determined for the nonionic surfactants (Brij-35 and TX-100) in dimethylformamide (DMF) + long-chain alcohol systems by titration microcalorimetry. From the power−time curves, the critical micelle concentration (cmc) and the ΔH^θ_m are obtained with ΔG^θ_m and ΔS^θ_m calculated. For this system, the relationships among the alcohol carbon number, the alcohol concentration with cmc, and the thermodynamic functions are discussed.