Thermal, structural and morphological investigation of the castor oil polyurethanedoped with 60%'SI''O IND. 2'-36%'CA'O-4%'P IND. 2''O IND. 5': x'AG IND. 2''O IND. e' bioactive glass - Candelorio, P. D.; Delben, J. R. J.; Rojas, S. S.; Delben, A. A. S. T.; Hernandes, Antônio Carlos (Brazilian MRS Meeting, 2011)