Water adsorption on and desorption from crystalline copolymers of vinylidene fluoride with trifluoroethylene.
J Phys Chem B
; 109(1): 532-5, 2005 Jan 13.
Article
em En
| MEDLINE
| ID: mdl-16851045
ABSTRACT
Water adsorption and absorption on crystalline polyvinylidene fluoride with 30% trifluoroethylene, P(VDF-TrFE, 7030), was examined by thermal desorption spectroscopy. Two distinctly different water adsorption sites are identified one adsorbed species that resembles ice and another species that interacts more strongly with the polymer thin film. The existence of the latter species is consistent with X-ray diffraction studies of water absorbed into the bulk of copolymers of polyvinylidene fluoride with trifluoroethylene crystalline thin films. There are strong steric effects observed in the angle-resolved thermal desorption that may be a result of the large polymer thin film surface dipoles.
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Base de dados:
MEDLINE
Assunto principal:
Polímeros
/
Compostos de Vinila
/
Hidrocarbonetos Fluorados
Idioma:
En
Ano de publicação:
2005
Tipo de documento:
Article