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US 8,449,954 B2Granted
Compound having photoreactive functional group, photoreactive polymer, and alignment film comprising the same
AssigneeLG Chem, Ltd.
InventorsDai-Seung Choi, Sung-Ho Chun, Young-Chul Won, Dong-Woo Yoo
Life of this patent
Estimating the term…
Abstract
The present invention relates to a specific photoreactive polymer that shows excellent alignment stability and thermal stability together with excellent liquid crystal alignment, thereby being desirably used in an alignment film of a liquid crystal display device, a compound having a photoreactive functional group that is used as a monomer for the preparation of the photoreactive polymer, and an alignment film.
Claims15
A compound having a photoreactive functional group. represented by the following Formula 1:
- A-R [Formula 1]
- wherein A is a cyclic olefin-based ring,
- R is one or more functional groups substituted in A, in which at least one is a radical of the following Chemical Formula 1a, and
- the others are each independently selected from the group consisting of hydrogen;
- halogen;
- cyano;
- substituted or unsubstituted, linear or branched alkyl having 1 to 20 carbon atoms;
- substituted or unsubstituted, linear or branched alkenyl having 2 to 20 carbon atoms;
- substituted or unsubstituted, linear or branched alkynyl having 2 to 20 carbon atoms;
- substituted or unsubstituted cycloalkyl having 3 to 12 carbon atoms;
- and substituted or unsubstituted aryl having 6 to 40 carbon atoms,
- wherein l is 0 or 1,
- D and D′ are each independently selected from the group consisting of a single bond, nitrogen, oxygen, sulfur, substituted or unsubstituted, linear or branched alkylene having 1 to 20 carbon atoms;
- substituted or unsubstituted cycloalkylene having 3 to 12 carbon atoms;
- substituted or unsubstituted, linear or branched alkylene oxide having 1 to 20 carbon atoms;
- and substituted or unsubstituted cycloalkylene oxide having 3 to 12 carbon atoms,
- E is
- X and Y are each independently selected from the group consisting of hydrogen;
- halogen;
- cyano;
- and substituted or unsubstituted, linear or branched alkyl having 1 to 20 carbon atoms,
- R10, R11, R12, R13, and R14 are each independently selected from the group consisting of hydrogen, halogen, cyano, substituted or unsubstituted alkyl having 1 to 20 carbon atoms;
- substituted or unsubstituted alkoxy having 1 to 20 carbon atoms;
- substituted or unsubstituted aryloxy having 6 to 30 carbon atoms;
- substituted or unsubstituted aryl having 6 to 40 carbon atoms;
- hetero aryl having 6 to 40 carbon atoms that includes Group 14, 15 or 16 hetero elements;
- and substituted or unsubstituted alkoxyaryl having 6 to 40 carbon atoms,
- R15 is one or two substituent(s), and each independently selected from the group consisting of hydrogen, halogen, cyano, substituted or unsubstituted alkyl having 1 to 20 carbon atoms;
- substituted or unsubstituted alkoxy having 1 to 20 carbon atoms;
- substituted or unsubstituted aryloxy having 6 to 30 carbon atoms;
- substituted or unsubstituted aryl having 6 to 40 carbon atoms;
- hetero aryl having 6 to 40 carbon atoms that includes Group 14, 15 or 16 hetero elements;
- and substituted or unsubstituted alkoxyaryl having 6 to 40 carbon atoms.
30 more elements
A photoreactive polymer comprising a repeating unit of the following Chemical Formula 1:
- wherein m is 50 to 5000,
- A′ is a cyclic olefin-based repeating unit,
- R is one or more functional groups substituted in A′, in which at least one is a radical of the following Chemical Formula 1a, and
- the others are each independently selected from the group consisting of hydrogen;
- halogen;
- cyano;
- substituted or unsubstituted, linear or branched alkyl having 1 to 20 carbon atoms;
- substituted or unsubstituted, linear or branched alkenyl having 2 to 20 carbon atoms;
- substituted or unsubstituted, linear or branched alkynyl having 2 to 20 carbon atoms;
- substituted or unsubstituted cycloalkyl having 3 to 12 carbon atoms;
- and substituted or unsubstituted aryl having 6 to 40 carbon atoms,
- wherein l is 0 or 1,
- D and D′ are each independently selected from the group consisting of a single bond, nitrogen, oxygen, sulfur, substituted or unsubstituted, linear or branched alkylene having 1 to 20 carbon atoms;
- substituted or unsubstituted cycloalkylene having 3 to 12 carbon atoms;
- substituted or unsubstituted, linear or branched alkylene oxide having 1 to 20 carbon atoms;
- and substituted or unsubstituted cycloalkylene oxide having 3 to 12 carbon atoms,
- E is
- X and Y are each independently selected from the group consisting of hydrogen;
- halogen;
- cyano;
- and substituted or unsubstituted, linear or branched alkyl having 1 to 20 carbon atoms,
- R10, R11, R12, R13, and R14 are each independently selected from the group consisting of hydrogen, halogen, cyano, substituted or unsubstituted alkyl having 1 to 20 carbon atoms;
- substituted or unsubstituted alkoxy having 1 to 20 carbon atoms;
- substituted or unsubstituted aryloxy having 6 to 30 carbon atoms;
- substituted or unsubstituted aryl having 6 to 40 carbon atoms;
- hetero aryl having 6 to 40 carbon atoms that includes Group 14, 15 or 16 hetero elements;
- and substituted or unsubstituted alkoxyaryl having 6 to 40 carbon atoms, and
- R15 is one or two substituent(s), and each independently selected from the group consisting of hydrogen, halogen, cyano, substituted or unsubstituted alkyl having 1 to 20 carbon atoms;
- substituted or unsubstituted alkoxy having 1 to 20 carbon atoms;
- substituted or unsubstituted aryloxy having 6 to 30 carbon atoms;
- substituted or unsubstituted aryl having 6 to 40 carbon atoms;
- hetero aryl having 6 to 40 carbon atoms that includes Group 14, 15 or 16 hetero elements;
- and substituted or unsubstituted alkoxyaryl having 6 to 40 carbon atoms.
30 more elements
Dependencies are inferred from the claim text.