A NOESY NMR Study of the Interaction between Sodium Dodecyl Sulfate and Poly(Ethylene Oxide)

✍ Scribed by Magne Ivar Gjerde; Willy Nerdal; Harald Høiland

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 70 KB
• Volume: 183
• Category: Article
• ISSN: 0021-9797
• DOI: 10.1006/jcis.1996.0545

✦ Synopsis

NOTE A NOESY NMR Study of the Interaction between Sodium Dodecyl Sulfate and Poly(Ethylene Oxide) carbon part of a water / SDS liquid crystal system has been addressed by Kekicheff et al. ( 10 ) . They found from neutron scattering studies that The system poly(ethylene oxide) (PEO) and sodium dodecyl PEO could be dissolved in the lamellar lyotropic mesophase of the water / sulfate (SDS) will in aqueous solution form SDS micelle-like ag-SDS system. Furthermore, Gao et al. ( 11 ) concluded from NMR chemigregates on the polymer when a critical surfactant concentration cal shift measurements that PEO resides in the interior of v-phenyldeca-(c.a.c.) is reached. The two-dimensional nuclear Overhauser ennoate micelles. hancement NMR (NOESY) experiment capable of revealing spa-The NOESY NMR technique has found widespread use in structural tial relationships among proximal protons has been applied to the PEO/SDS system to study structural details of their interaction. NOESY cross-peaks at sample temperatures of 283.1 and 298.1 K indicate proximity (õ5 A ˚) of the polymer protons and the main part of the surfactant hydrocarbon chain. The results indicate that the polymer (PEO) penetrates into the interior of the SDS micelles.