STUDY OF HYDROLYTIC STABILITY OF POLYORGANO- SILOXANES CONTAINING CYCLODISILAZANE IN THE BACKBONE
主链含环二硅氮烷硅橡胶水解稳定性的研究

The hydrolytic stability of polyorganosiloxanes containing cyclodisilazane in the backbone and their monomer were studded. The phenyl substitution on silicon was observed to increase the hydrolytic stability of silicon-nitrogen bond in the cyclodisilazane. However, it was found that siloxane segment bonded cyclodisilazane could increae the hydrolytic stabilyty of silicon-nitrogen bond, while the macromolecular structure could give substantial increase in the hydrolytic stability. Hence, the polymers obtained are very stable to water.