%0 conference lecture (invited) %@ %A Pereira Nunes, S.,Peinemann, K.-V.,Zoppi, R. A.,Sforca, M. L.,Yoshida, I. V. %D 1998 %J IV. Congreso Iberoamericano de Polimeros %N %P %T Organic-Inorganic Polymer Hybrids – Membrane Applications %U %X