Structural parameters for the free-standing foam film of hexaethylene glycol monododecyl ether (C12E6) have been measured by using X-ray reflectometry. The re-sults indicate that a five-laminae model corresponds to th...Structural parameters for the free-standing foam film of hexaethylene glycol monododecyl ether (C12E6) have been measured by using X-ray reflectometry. The re-sults indicate that a five-laminae model corresponds to this inverted bilayer and divides it into five regions. The thick-nesses of the aliphatic chain regions, the polar head-group regions, and the central aqueous core are 0.90, 1.35 and 1.31 nm, respectively; and their corresponding electron densities are 2.4 10-3, 2.6 10-3 and 2.310-3 electron/nm3, respec-tively; the interfacial roughness between adjacent regions is 0.34 nm. The central core of this foam film does not contain free water, its thickness decreased 0.40 nm under the irra-diation of infrared rays due to the loss of structural water.展开更多
基金supported by the Scientific Research Foundation for the Returned Overseas Chinese Scholars from the Ministry of Education of China(Grant No.2002247)the Scientitic Research Foundation for the Honor of the Excellent Young Scientists of Shandong Province(Grant No.02BS115)the Scientific Research Foundation for the Young Scientists of Shandong University(Grant No.Y34029).
文摘Structural parameters for the free-standing foam film of hexaethylene glycol monododecyl ether (C12E6) have been measured by using X-ray reflectometry. The re-sults indicate that a five-laminae model corresponds to this inverted bilayer and divides it into five regions. The thick-nesses of the aliphatic chain regions, the polar head-group regions, and the central aqueous core are 0.90, 1.35 and 1.31 nm, respectively; and their corresponding electron densities are 2.4 10-3, 2.6 10-3 and 2.310-3 electron/nm3, respec-tively; the interfacial roughness between adjacent regions is 0.34 nm. The central core of this foam film does not contain free water, its thickness decreased 0.40 nm under the irra-diation of infrared rays due to the loss of structural water.
