申请人:Hughes Timothy Charles
公开号:US20090276042A1
公开(公告)日:2009-11-05
The present invention relates to a macromonomer having a polydimethylsiloxane backbone that has a mol % dimethyl siloxanes, b mol % siloxanes substituted with -K-RIM, c mol % siloxanes substituted with -K-RIM-Z and d mol % siloxanes substituted with -L-Z, and in which the terminal siloxane groups are tri-substituted with R, wherein RIM is a refractive index modifying group; Z is a free radically polymerisable group; K is a spacer group; L is optional and is a spacer group; each R is independently selected from an RIM, a lower alkyl group, hydrogen or Z; and a is a molar percentage of the macromonomer which is in the range of from 0 to 95 mol %; b is a molar percentage of the macromonomer which is in the range of from 5 to 99 mol %; c is a molar percentage of the macromonomer which is in the range of from 0 to 2 mol %; and d is a molar percentage of the macromonomer which is in the range of from 0 to 2 mol %; with the proviso that c and d are not both 0 mol %.
本发明涉及一种具有聚二甲基硅氧烷骨架的大单体,其具有a摩尔%二甲基硅氧烷,b摩尔%取代为-K-RIM的硅氧烷,c摩尔%取代为-K-RIM-Z的硅氧烷和d摩尔%取代为-L-Z的硅氧烷,其中末端硅氧烷基团是三取代的R,其中RIM是折射率修饰基团;Z是自由基聚合基团;K是间隔基团;L是可选的间隔基团;每个R是独立选择的RIM,低碳烷基,氢或Z;a是大单体的摩尔百分比,范围为0至95摩尔%;b是大单体的摩尔百分比,范围为5至99摩尔%;c是大单体的摩尔百分比,范围为0至2摩尔%;d是大单体的摩尔百分比,范围为0至2摩尔%;但是c和d不能同时为0摩尔%。