INIQUI   05448
INSTITUTO DE INVESTIGACIONES PARA LA INDUSTRIA QUIMICA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Preparation and characterization of mix matrix membranes polymer based silane-trated clay reinforced polycarbonate nanocomposites.
Autor/es:
G. FLORES; E. ERDMANN; M. TORO; C. PARANHOS; L. PESSAN; H. DESTÉFANIS
Lugar:
Venecia
Reunión:
Conferencia; ECCM15 - 15TH European Conference on Composite Materials; 2012
Institución organizadora:
ECCM15 - 15TH European Conference on Composite Materials
Resumen:
In this work an argentinian sodium montmorillonite (MMT) was used as a starting materia.
The first step was a cation exchange with hexadecyltrimethylammonium for obtain an
organophilic clay. Then, this clay was mixed with dimethyldichlorosilane in a process
involving the generation of the silane oligomers due to hydrolysis reaction and subsequent
polymerization. Characterization of these clays by X-ray diffraction shows the intercalation of
modifiers species. In adittion, the results of TGA show different profiles of thermal
decomposition of clays.
These additives were used to modify the structure of polymeric matrix of polycarbonate; the
final materials were characterized by X-ray diffraction and thermal analysis; transport
properties were evaluated by the pervaporation technique, using distilled water. The results
show that the hydrophobic character of the silanized material affects the PC polymeric matrix
by changing the molecular mobility of species, enabling their use in separation processes of
alcohol-water mixtures.