SYNTHESIS AND DYNAMIC-MECHANICAL BEHAVIOR OF INORGANIC-ORGANIC HYBRIDS CONTAINING VARIOUS INORGANIC COMPONENTS

Inorganic-organic hybrids containing various inorganic components have been successfully synthesized from silanol-terminated poly (dimethyls iloxane) (PDMS) and three different inorganic sources, Al(OBus)(3), Ti (OEt)(4) and Ta(OEt)(5), by using a sol-gel process. Inorganic compone nts as well as the process conditions were found to affect the structu re and properties of metal-O-PDMS hybrids from dynamic mechanical meas urements and FTIR studies. The storage modulus increased and the peak height of the tan delta curve decreased in the order of Al-O-PDMS, Ti- O-PDMS and Ta-O-PDMS hybrids, which may result from the difference in valence and atomic mass of the metallic element constituting the inorg anic component.