%0 Journal Article
%T S¨ªntesis y caracterizaci¨®n de s¨ªlicas mesoestructuradas funcionalizadas con grupos acidosulf¨®nicos
%A Posada
%A John Alexander
%A Giraldo
%A Oscar Hern¨¢n
%A Cardon
%A Carlos Ariel
%J Revista Facultad de Ingenier¨ªa Universidad de Antioquia
%D 2011
%I Scientific Electronic Library Online
%X hexagonal (mcm-41, sba-15, and hms) and cubic (mcm-48) mesostructured silicas were synthesized and functionalized with the propylsulphonic acid group, by grafting and co-condensation methods. structural conformation, physical-chemistry characterization, and morphology of the materials was performed by xrd, ft-ir, tga, and sem techniques. higher functionalization degrees were reached by co-condensation method, for mcm-48 and sba-15 mesophases. these higher functionalization degrees lead to less thermally and structurally stable materials than those obtained by the grafting method.
%K characterization
%K co-condensation
%K grafting
%K mesoporous
%K functionalization.
%U http://www.scielo.org.co/scielo.php?script=sci_abstract&pid=S0120-62302011000200007&lng=en&nrm=iso&tlng=en