IMBICE   05372
INSTITUTO MULTIDISCIPLINARIO DE BIOLOGIA CELULAR
Unidad Ejecutora - UE
artículos
Título:
New membranes obtained by grafted irradiated PVDF foils
Autor/es:
R. MAZZEI, G. GARCÍA BERMÚDEZ, D.E. CAMPOROTONDI, C. ARBEITMAN, M.F. DEL GROSSO, M. BEHAR
Revista:
NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH B - BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2012 vol. 287 p. 26 - 30
ISSN:
0168-583X
Resumen:
Abstract The present work describes a new method to produce membranes of poly(Acrylic-acid-Xmonomer) using the grafting procedure. PVDF foils irradiated with Ar+ beam with energies between 30 and 150 keV were employed as substratum. Different combinations of monomers in water solutions were used: acrylic acid (AAc); acrylic acid?glycidyl methacrylate (AAc?GMA); acrylic acid?styrene (AAc?S), acrylic acid-N-isopropyl acrylamide (AAc?NIPAAm) and acrylic acid-N-isopropyl acrylamide?glycidyl methacrylate (AAc-NIPAAm?GMA). A large percentage of grafting results for specific values of: ion fluence and energy, AAc and sulfuric acid concentration, and different substrata PVDF polymorphous (alpha or beta). At a particular time of the grafting process, the poly(AAc-Xmonomer) membranes detach from the substratum and continue their grafting in the solution. This method is useful to produce increased replicated membranes of the irradiated original surface.