H-1-NMR, SURFACE-TENSION, VISCOSITY, AND VOLUME EVIDENCE OF MICELLE-POLYMER HYDROPHOBIC INTERACTIONS - LIPFN-PVP SYSTEM

Authors
SESTA B SEGRE AL DAPRANO A PROIETTI N
Citation
B. Sesta et al., H-1-NMR, SURFACE-TENSION, VISCOSITY, AND VOLUME EVIDENCE OF MICELLE-POLYMER HYDROPHOBIC INTERACTIONS - LIPFN-PVP SYSTEM, JOURNAL OF PHYSICAL CHEMISTRY B, 101(2), 1997, pp. 198-204
Citations number
40
Categorie Soggetti
Chemistry Physical
Journal title
JOURNAL OF PHYSICAL CHEMISTRY B
ISSN journal
15206106 → ACNP
Volume
101
Issue
2
Year of publication
1997
Pages
198 - 204
Database
ISI
SICI code
1089-5647(1997)101:2<198:HSVAVE>2.0.ZU;2-W
Abstract
Proton NMR investigations on lithium heptadecafluorononanoate, LiPFN, in poly(vinylpyrrolidone), PVP, aqueous solutions have been carried ou t. NMR spectra reveal that the amphiphile, in its micellar form, links to the polymer chains by hydrophobic interactions with the pyrrolidon e functional group of the polymer, causing a significant change in the PVP structure. Surface tension, viscosity, and volume measurements on LiPFN-PVP-water systems support the NMR evidence.