High temperature stabilization of crosslinked siloxanes glasses

The high-temperature stability of highly cross-linked cyclotetrasiloxane glasses, derived from (Me(Vi)SiO) 4 and (Me(H)SiO) 4 , was investigated using TGA/MS and 29 Si NMR. Results show that the cyclosiloxane network remains largely intact after heating at 400°C for 1 h. Decomposition of the siloxane network does not occur until greater than 525°C