A photochromic polymer comprising at least one siloxane oligomer and at least two photochromic groups covalently linked to one or both terminuses of the siloxane oligomer and compositions containing photochromic siloxane polymers with narrow polydispersity. The photochromic polymer enhances switching speed in rigid host polymers.
一种光致变色聚合物,包括至少一种
硅氧烷寡聚物和至少两个光致变色基团,它们与
硅氧烷寡聚物的一个或两个端点共价连接,以及含有具有狭窄分子量分布的光致变色
硅氧烷聚合物的组合物。该光致变色聚合物可以提高刚性宿主聚合物的切换速度。