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EP0488825A2 Liquid crystalline organopolysiloxanes and liquid crystal compositions 失效
液晶有机聚硅氧烷和液晶组合物

Liquid crystalline organopolysiloxanes and liquid crystal compositions
摘要:
Liquid crystalline organopolysiloxane is provided having the general formula :
wherein R is independently selected from the group consisting of a hydrogen atom, hydrocarbon group having 1 to 4 carbon atoms, and phenyl group, A is a group of the formula :
wherein m, n, and x are integers in the range : m ≧ 3, n ≧ 2, 5 ≦ m + nx Z 15, x = 1 or 2, B is an organic chromophore group having an absorption peak in the visible spectrum, a, b, and c are numbers in the range : 1 ≦ a
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