XPS investigation of water-soluble copolymer surfactants on interface

✍ Scribed by Jian Xu; Lianghe Shi; Meiling Ye

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 170 KB
• Volume: 37
• Category: Article
• ISSN: 0887-6266
• DOI: 10.1002/(sici)1099-0488(19990901)37:17<2297::aid-polb1>3.0.co;2-y

✦ Synopsis

The possible molecule conformation of a new type of polymer surfactant at air/solid interface, acrylamide-poly(oxyethylene alkyl ether)acrylate-anionic monomer random copolymers, was studied by X-ray photoelectron spectroscopy in detail. By means of changing the detection angle, group composition at surface layer in thickness of 0 ϳ 2.5 nm can be obtained. The results show that the surface activity of the copolymers related closely with the conformation of the groups of the copolymers. The hydrophobic backbone of the copolymer plays the most important role in enhancing surface activity.