| 摘要 |
The present invention relates to polymerizable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal media comprising them, and to the use of the polymerizable compounds and liquid crystalline media for optical, electro-optical and electronic purposes, in particular in liquid crystalline displays, especially in liquid crystalline displays of the polymer sustained alignment type. |
| 主权项 |
1. A compound of formula I
P-Sp-Ar—R I wherein Ar is which is substituted by at least one group La and optionally substituted by one or more groups L, La is an alkoxy group with 1 to 12 C atoms that is straight-chain or branched and is optionally fluorinated, L is on each occurrence identically or differently F, Cl, —CN, P-Sp-, or straight chain, branched or cyclic alkyl having 1 to 25 C atoms, wherein one or more non-adjacent CH2-groups are optionally replaced by —O—, —S—, —CO—, —CO—O—, —O—CO—, —O—CO—O— in such a manner that O- and/or S-atoms are not directly connected with each other, and wherein one or more H atoms are each optionally replaced by F or Cl, or L has the meaning of La, P is a polymerizable group, Sp is a spacer group that is optionally substituted by one or more groups P, or a single bond, R is P-Sp-, H or has one of the meanings given for L, wherein, if Ar is one of Ar1 to Ar4, all groups P that are present in the compound have the same meaning. |
