| 摘要 |
The invention relates to reactive mesogens (RMs) comprising a terphenyl group, to mixtures and formulations comprising them, to polymers obtained form such RMs and RM mixtures, and the use of the RMs, RM mixtures and polymers in optical or electrooptical components or devices, like optical retardation films for liquid crystal displays (LCDs). |
| 主权项 |
1. A compound of formula Iwherein
P is a polymerisable group, Sp is a spacer group or a single bond, L1, L2, L3 are independently of each other P-Sp-, F, Cl, Br, I, —CN, —NO2, —NCO, —NCS, —OCN, —SCN, —C(═O)NR00R000, —C(═O)X, —C(═O)OR00, —C(═O)R0, —NR00R000, —OH, —SF5, optionally substituted silyl, aryl or heteroaryl with 1 to 12, preferably 1 to 6 C atoms, and straight chain or branched alkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or alkoxycarbonyloxy with 1 to 12, preferably 1 to 6 C atoms, wherein one or more H atoms are optionally replaced by F or Cl, r1, r2, r3 are independently of each other 0, 1, 2, 3 or 4, R00, R000 independently of each other denote H or alkyl with 1 to 12 C-atoms, Y is CN, F, Cl, OCF3, OCH3 or CF3. |
