ZWITTERIONIC GEMINI SURFACTANTS FOR USE IN CARBON DIOXIDE

摘要

A surfactant comprises a first ionic group comprising at least one hydrocarbon-containing chain; a second ionic group comprising at least one hydrocarbon-containing chain, wherein the second ionic group has a charge opposite to the charge of the first ionic group; and a hydrocarbon spacer group covalently bonded to each of the first and second ionic groups. The surfactant is solubilized in carbon dioxide.