| 摘要 |
A cyclic organosilicon compound comprising one aliphatic unsaturation described by formulawhere each R is an independently selected hydrocarbon radical free from aliphatic unsaturation comprising 1 to about 18 carbon atoms; each X is independently selected from the group consisting of halogen, alkoxy, acyloxy, and ketoximo; m is an integer from 2 to 7; p is an integer from 0 to 6; m+p is an integer from 2 to 8; n is 0, 1, or 2; each Z is independently selected from the group consisting of divalent hydrocarbon radicals free of aliphatic unsaturation comprising about 2 to 18 carbon atoms and a combination of divalent hydrocarbon radicals and siloxane segments; and Y is selected from the group consisting of hydrocarbon radicals comprising one aliphatic unsaturation and 2 to about 18 carbon atoms and a combination comprising one aliphatic unsaturation of hydrocarbon radicals, siloxane segments, and a divalent hydrocarbon radical free of aliphatic unsaturation comprising 2 to about 18 carbon atoms. The cyclic organosilicon compounds comprising one aliphatic unsaturation of the present invention are useful as endcappers for polymers.
|
