00646nam a2200169 a 450000100080000000500110000800800410001910000170006024501010007726001890017865300110036770000150037870000220039370000190041570000200043470000220045410271242013-08-13 2008 bl uuuu u00u1 u #d1 aALVES, W. F. aCharacterization of nanocomposites of polyurethane based on castor oil and cellulose nanofibers. aIn: INTERNATIONAL CONFERENCE ON NANOSTRUCTURED MATERIALS -NANO 2008, 9., 2008, Rio de Janeiro. Abstracts... Rio de Janeiro: Centro Brasileiro de Pesquisas FĂ­sicas, 2008. p. 302.c2008 aEvento1 aITO, E. N.1 aMARCONCINI, J. M.1 aORLANDI, M. O.1 aMALMONGE, J. A.1 aMATTOSO, L. H. C.