Relation between the Wetting Effect and the Adsorbed Amount of Water-Soluble Polymers or Proteins at Various Interfaces

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• 作者：Lalit M. Pandey ; Sudip K. Pattanayek
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2013
• 出版时间：December 12, 2013
• 年：2013
• 卷：58
• 期：12
• 页码：3440-3446
• 全文大小：278K
• 年卷期：v.58,no.12(December 12, 2013)
• ISSN：1520-5134

文摘

The contact angle of a solution is related to the adsorbed masses at contact points of three different interfaces through Lucassen-Reynders鈥檚 relation. The direct use of this relation is restricted by the difficulty of measurement of adsorbed mass at the solid鈥搗apor and vapor鈥搇iquid interfaces. We have extended the Lucassen-Reynders鈥檚 relation to show that adsorbed masses are related linearly with the wetting effect, which is defined as the difference of wetting tensions of solution and solvent. The wetting effects are determined from the measured contact angle of aqueous solution of poly(oxyethylene), poly[1-(2-oxopyrrolidin-1-yl)ethylene], poly(sodium 4-styrene sulfonate), poly(acrylic acid), albumin, and fibrinogen on various self-assembled surfaces and surface tension of solutions. The extended Lucassen-Reynders鈥檚 relation is verified using the experimentally determined wetting effect and adsorbed mass of polymers and proteins determined using a quartz crystal microbalance (QCM). The reasonable value of the determined adsorbed mass on liquid鈥搗apor and solid鈥搗apor interfaces indicates the applicability of our methodology.