Influence of ethoxylate distribution on interfacial properties of linear and branched ethoxylate surfactants

Add time:07/24/2019    Source:sciencedirect.com

The influence of ethoxylate distribution on interfacial properties of linear and branched hydrophobe C12 and C13 alcohols is examined at the air-water, decane-water, and Teflon-water interfaces. In the polydisperse ethoxylates, the presence of unreacted alcohol and broad ethoxylate distribution causes interfacial properties to change significantly at the decane-water interface and moderately at the Teflon-water and air-water interfaces. The linear hydrophobe ethoxylate is more sensitive to the presence of unreacted alcohol and broad ethoxylate distribution than the branched hydrophobe ethoxylate.

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