why 丢人? they did it on purpose, so people can laugh at them...
w*q
7 楼
The pH-Dependent Surface Activity of a Hydrocarbon/Fluorocarbon Catanionic Surfactant for Water/Hydrofluoroether Microemulsions: The Characterization of a New Acid/Soap Complex http://www.sendspace.com/file/k3of9y
Studies on the Interactions Between Mucin and Surfactant Aggregates Containing the Cationic Surfactant Dodecyl Betainate http://www.sendspace.com/file/985fcu