[EN] DIBENZO[D,B]SILOLE-BASED REACTIVE MESOGENS<br/>[FR] MÉSOGÈNES RÉACTIFS À BASE DE DIBENZO[D,B]SILOLE
申请人:LOMOX LTD
公开号:WO2018065786A1
公开(公告)日:2018-04-12
The present invention provides a compound of Formula (I) D-S1-A-S2 B1, Formula (I) wherein a represents a conjugated chain of from 1 to 20 aromatic moieties independently selected from the group consisting of aromatic moieties, heteroaromatic moieties and E moieties, provided that A includes at least one E moiety, wherein E is selected from the group consisting of E1 being a dibenzo[d,b]silole moiety of the structure, E2 being a moiety of the structure and E3 being a moiety of the structure wherein E is connected in the conjugated chain of A and optionally to S1 or to S2 through covalent bonds at Y and Z; wherein each R is independently selected from the group consisting of straight chain or branched C1-C20 alkyl and C2-C20 alkenyl, optionally wherein from 1 to 5 CH2 groups are each replaced by an oxygen, provided that no acetal, ketal, peroxide or vinyl ether is present in the R group, and optionally wherein each H bonded to a C in each R group may independently be replaced by a halogen; wherein the X moieties are the same and are selected from the group consisting of hydrogen, straight chain or branched C1-C8 alkyl, straight chain or branched C1-C8 alkoxyl and a halogen, wherein each E moiety may have the same or different X moieties, wherein W is either an oxygen or sulfur atom, D represents a moiety having one or more cross-linkable functionalities, S1 and S2 are flexible linker groups; and B1 represents a moiety having one or more cross-linkable functionalities or a hydrogen atom, with the proviso that when B1 represents a hydrogen atom, D represents a moiety having at least two cross-linkable functionalities.
本发明提供了一种化合物,其化学式为(I)D-S1-A-S2 B1,其中化学式(I)中的a代表一个由1到20个芳香基团组成的共轭链,这些芳香基团可以独立地选自芳香基团、杂芳基团和E基团的组合,其中A至少包括一个E基团,其中E选自包括结构为dibenzo[d,b]硅烯基团的E1、结构为E2的基团和结构为E3的基团的组合,其中E连接在A的共轭链中,并且可以通过在Y和Z处与S1或S2形成共价键连接;其中每个R可以独立地选自直链或支链的C1-C20烷基和C2-C20烯基的组合,可选地,其中从1到5个CH2基团中的每个都被氧替代,前提是R基团中没有存在缩醛、缩酮、过氧化物或乙烯醚,并且每个连接到R基团中的C的H可以独立地被卤素替代;其中X基团相同,选自氢、直链或支链的C1-C8烷基、直链或支链的C1-C8烷氧基和卤素,每个E基团可能具有相同或不同的X基团,W为氧或硫原子,D代表具有一个或多个可交联官能团的基团,S1和S2是柔性连接基团;B1代表具有一个或多个可交联官能团或氢原子的基团,但有一个条件,即当B1代表氢原子时,D代表至少具有两个可交联官能团的基团。