Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Order parameter profile of perfluorinated chains in a lamellar phase. / Dvinskikh, S. V.; Furó, I.
в: Langmuir, Том 16, № 6, 21.03.2000, стр. 2962-2967.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Order parameter profile of perfluorinated chains in a lamellar phase
AU - Dvinskikh, S. V.
AU - Furó, I.
PY - 2000/3/21
Y1 - 2000/3/21
N2 - Cesium perfluorooctanoate molecules are investigated by NMR spectroscopy in the lamellar phase of their aqueous solution. The particular NMR method, 13C-detected, 19F-decoupled separated-local-field (SLF) spectroscopy, provides the dipolar splitting of each 13C spin to its 19F neighbors. These dipolar splittings are interpreted in terms of the molecular C-F bond order parameters of each difluoromethylene and trifluoromethyl group. The obtained variation of this order parameter along the fluoroalkyl chain strengthens the conclusion from an earlier, model-dependent study (Furo, I.; Sitnikov, R. Langmuir 1999, 15, 2669): perfluorinated surfactant chains are significantly more rigid than their hydrogenated counterparts.
AB - Cesium perfluorooctanoate molecules are investigated by NMR spectroscopy in the lamellar phase of their aqueous solution. The particular NMR method, 13C-detected, 19F-decoupled separated-local-field (SLF) spectroscopy, provides the dipolar splitting of each 13C spin to its 19F neighbors. These dipolar splittings are interpreted in terms of the molecular C-F bond order parameters of each difluoromethylene and trifluoromethyl group. The obtained variation of this order parameter along the fluoroalkyl chain strengthens the conclusion from an earlier, model-dependent study (Furo, I.; Sitnikov, R. Langmuir 1999, 15, 2669): perfluorinated surfactant chains are significantly more rigid than their hydrogenated counterparts.
UR - http://www.scopus.com/inward/record.url?scp=0033897513&partnerID=8YFLogxK
U2 - 10.1021/la991114v
DO - 10.1021/la991114v
M3 - Article
AN - SCOPUS:0033897513
VL - 16
SP - 2962
EP - 2967
JO - Langmuir
JF - Langmuir
SN - 0743-7463
IS - 6
ER -
ID: 48946460