Article (Scientific journals)
Adsorption of Poly(vinylpyrrolidone)/Surfactant(s) mixtures at the silica/water interface: a calorimetric investigation
Thibaut, Anne; Misselyn-Bauduin, Anne-Marie; Broze, Guy et al.
2000In Langmuir, 16 (25), p. 9841-9849
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Keywords :
coating
Abstract :
[en] The adsorption of binary mixtures of poly(vinylpyrrolidone) (PVP) and sodium dodecyl sulfate (SDS) and of ternary mixture of PVP, SDS, and pentaethylene glycol monodecyl ether (C10E5) onto silica has been studied by the measurements of the adsorbed amount of PVP and the heat of adsorption. The amount of PVP adsorbed from the binary mixtures decreases as the SDS concentration is increased, whereas the enthalpy change passes through a maximum at SDS concentration of ca. 4 g/L. The chain conformation of PVP adsorbed on silica has been estimated from the adsorption data in relation to the surfactant concentration. It changes from loops and tails to trains upon increasing SDS concentration. At SDS concentrations higher than 4 g/L, a comblike conformation is observed. The adsorption of PVP/SDS/C10E5 ternary mixtures depends on the polymer concentration regime.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry
Materials science & engineering
Author, co-author :
Thibaut, Anne;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Misselyn-Bauduin, Anne-Marie;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Broze, Guy ;  Colgate Palmolive R&D, Milmort, Belgium
Jérôme, Robert ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Adsorption of Poly(vinylpyrrolidone)/Surfactant(s) mixtures at the silica/water interface: a calorimetric investigation
Publication date :
12 December 2000
Journal title :
Langmuir
ISSN :
0743-7463
eISSN :
1520-5827
Publisher :
Amer Chemical Soc, Washington, United States - Washington
Volume :
16
Issue :
25
Pages :
9841-9849
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
BELSPO - Politique scientifique fédérale [BE]
Colgate Palmolive Company [US-NY] [US-NY]
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