| 摘要 |
An organosilicon polymer composition comprising alternating polycyclic polyene residues and polysiloxane or siloxysilane residues linked through carbon to silicon bonds, the polycyclic polyene residues being derived from polycyclic polyenes having at least two non-aromatic carbon-carbon double bonds in their rings and from about 5% to about 70% of the polysiloxane and siloxysilane residues being derived from linear, short chain IDENTICAL SiH terminated polysiloxanes, the remainder being derived from cyclic polysiloxanes or tetrahedral siloxysilanes, a process for making the polymer compositions including intermediate stable prepolymer compositions, and the use of the intermediate prepolymer compositions to make thermoset organosilicon polymers by curing the organosilicon prepolymer compositions in the presence of a hydrosilation catalyst. |
