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    • 10. 发明授权
    • Photoactive polymers
    • 光活性聚合物
    • US06649230B1
    • 2003-11-18
    • US09958043
    • 2001-10-03
    • Hubert SeiberleGuy MarckOlivier Muller
    • Hubert SeiberleGuy MarckOlivier Muller
    • C08F24600
    • C08F246/00G02F1/133711G02F1/133723G02F1/133788Y10T428/1005Y10T428/1014Y10T428/1018Y10T428/1023Y10T428/1027
    • A photoactive polymer of the general formula I: in which: P is a photoactive group which can photoisomerise and/or photodimerise; B represents an aromatic or alicyclic group, or B further represents a nitrogen atom or —CR2—; A, C, D each independently of the other represents an aromatic or alicyclic group; M represents a repeating monomer unit in a homo- or copolymer; S1, S2, S3, S4, S5 represent a single covalent bond or a spacer unit; n1, n2 are each independently a positive integer up to 2 with the proviso that n1+n2≦2; R1 is a hydrogen atom, or a straight-chain or branched alkyl residue wherein R2 represents a hydrogen atom or lower alkyl. The photoactive polymers may be used as orientation layers for liquid crystals and in the construction of unstructured and structured optical elements and multi-layer systems.
    • 一种通式I的光敏聚合物,其中:P是可以光异构化和/或光二聚的光敏基团; B代表芳族或脂环族基团,或B进一步代表氮原子或-CR 2 - ; A, C,D各自独立地表示芳族或脂环族基团; M表示均聚物或共聚物中的重复单体单元; S 1,S 2,S 3,S 4, 5>表示单个共价键或间隔单元; n 1,n 2各自独立地为直至2的正整数,条件是n 1 + n 2 = 2; R 1 >是氢原子,或其中R 2表示氢原子或低级烷基的直链或支链烷基残基。光活性聚合物可用作液晶的取向层,以及在非结构化和结构化的光学元件的结构中 和多层系统。