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Dynamic properties of adsorption layers of heptadecafluoro-1-nonanol. Effect of surface phase transitions. / Noskov, Boris A.; Akentiev, Alexander V.; Lin, Shi Yow.
в: Journal of Molecular Liquids, Том 282, 15.05.2019, стр. 316-322.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Dynamic properties of adsorption layers of heptadecafluoro-1-nonanol. Effect of surface phase transitions
AU - Noskov, Boris A.
AU - Akentiev, Alexander V.
AU - Lin, Shi Yow
PY - 2019/5/15
Y1 - 2019/5/15
N2 - The dilational surface rheology was applied to study the properties of adsorbed layers of a fluorinated surfactant (heptadecafluoro-1-nonanol) with a surface phase transition at the water – air interface. At relatively low surface tensions (<~57 mN/m) the dynamic surface elasticity reached anomalously high values (~200 mN/m) and exhibited a local minimum at higher surface tensions in the region of a two-dimensional phase transition. A mathematical model was developed to describe dilational properties of the adsorbed layer in the region of coexistence of two surface phases. The application of this model to solutions of the fluorinated surfactant allowed estimation of the kinetic parameters of the relaxation processes in the surface layer.
AB - The dilational surface rheology was applied to study the properties of adsorbed layers of a fluorinated surfactant (heptadecafluoro-1-nonanol) with a surface phase transition at the water – air interface. At relatively low surface tensions (<~57 mN/m) the dynamic surface elasticity reached anomalously high values (~200 mN/m) and exhibited a local minimum at higher surface tensions in the region of a two-dimensional phase transition. A mathematical model was developed to describe dilational properties of the adsorbed layer in the region of coexistence of two surface phases. The application of this model to solutions of the fluorinated surfactant allowed estimation of the kinetic parameters of the relaxation processes in the surface layer.
KW - Dilational surface rheology
KW - Fluorinated surfactants
KW - Gibbs monolayers
KW - Phase transitions
UR - http://www.scopus.com/inward/record.url?scp=85062856090&partnerID=8YFLogxK
U2 - 10.1016/j.molliq.2019.03.009
DO - 10.1016/j.molliq.2019.03.009
M3 - Article
AN - SCOPUS:85062856090
VL - 282
SP - 316
EP - 322
JO - Journal of Molecular Liquids
JF - Journal of Molecular Liquids
SN - 0167-7322
ER -
ID: 42838704