The present invention relates to a novel method for the preparation of photoaligning polymer materials comprising aryl acrylic acid ester groups, to photoalignment compositions obtained by this process, to the use of the composition as orienting layer for liquid crystals and to non-structured and structured optical elements, electro-optical elements, multi-layer systems or in nanoelectronics comprising the compositions.

The present invention relates to: a polymerizable compound represented by a formula (I), wherein each of Y.sup.1 to Y.sup.8 independently represents O, OC(O), C(O)O or the like; each of A.sup.2, A.sup.3, G.sup.1, and G.sup.2 independently represents a divalent linear aliphatic group having 1 to 20 carbon atoms or the like; each of Z.sup.1 and Z.sup.2 independently represents an alkenyl group having 2 to 10 carbon atoms or the like; A.sup.x represents an organic group having 2 to 30 carbon atoms that includes at least one aromatic ring; A.sup.y represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms or the like; A.sup.1 represents a trivalent aromatic group or the like; each of A.sup.4 and A.sup.5 independently represents a divalent aromatic group having 6 to 30 carbon atoms or the like; and Q.sup.1 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or the like; and others. According to the present invention, it becomes possible to provide: a polymerizable compound that have a practical low melting point, exhibit excellent solubility in a general-purpose solvent, can be produced inexpensively, can be dried at a lower temperature, has excellent energy efficiency, and can produce an optical film that achieves uniform conversion of polarized light over a wide wavelength band; and others.

##STR00001##

The present invention relates to: a polymerizable compound represented by a formula (I), wherein each of Y.sup.1 to Y.sup.8 independently represents O, OC(O), C(O)O or the like; each of A.sup.2, A.sup.3, G.sup.1, and G.sup.2 independently represents a divalent linear aliphatic group having 1 to 20 carbon atoms or the like; each of Z.sup.1 and Z.sup.2 independently represents an alkenyl group having 2 to 10 carbon atoms or the like; A.sup.x represents an organic group having 2 to 30 carbon atoms that includes at least one aromatic ring; A.sup.y represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms or the like; A.sup.1 represents a trivalent aromatic group or the like; each of A.sup.4 and A.sup.5 independently represents a divalent aromatic group having 6 to 30 carbon atoms or the like; and Q.sup.1 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or the like; and others. According to the present invention, it becomes possible to provide: a polymerizable compound that have a practical low melting point, exhibit excellent solubility in a general-purpose solvent, can be produced inexpensively, can be dried at a lower temperature, has excellent energy efficiency, and can produce an optical film that achieves uniform conversion of polarized light over a wide wavelength band; and others.

##STR00001##

The present invention relates to: a polymerizable compound represented by a formula (I), wherein each of Y.sup.1 to Y.sup.8 independently represents O, OC(O), C(O)O or the like; each of A.sup.2, A.sup.3, G.sup.1, and G.sup.2 independently represents a divalent linear aliphatic group having 1 to 20 carbon atoms or the like; each of Z.sup.1 and Z.sup.2 independently represents an alkenyl group having 2 to 10 carbon atoms or the like; A.sup.x represents an organic group having 2 to 30 carbon atoms that includes at least one aromatic ring; A.sup.y represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms or the like; A.sup.1 represents a trivalent aromatic group or the like; each of A.sup.4 and A.sup.5 independently represents a divalent aromatic group having 6 to 30 carbon atoms or the like; and Q.sup.1 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or the like; and others. According to the present invention, it becomes possible to provide: a polymerizable compound that have a practical low melting point, exhibit excellent solubility in a general-purpose solvent, can be produced inexpensively, can be dried at a lower temperature, has excellent energy efficiency, and can produce an optical film that achieves uniform conversion of polarized light over a wide wavelength band; and others. ##STR00001##

The present invention relates to: a polymerizable compound represented by a formula (I), wherein each of Y.sup.1 to Y.sup.8 independently represents O, OC(O), C(O)O or the like; each of A.sup.2, A.sup.3, G.sup.1, and G.sup.2 independently represents a divalent linear aliphatic group having 1 to 20 carbon atoms or the like; each of Z.sup.1 and Z.sup.2 independently represents an alkenyl group having 2 to 10 carbon atoms or the like; A.sup.x represents an organic group having 2 to 30 carbon atoms that includes at least one aromatic ring; A.sup.y represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms or the like; A.sup.1 represents a trivalent aromatic group or the like; each of A.sup.4 and A.sup.5 independently represents a divalent aromatic group having 6 to 30 carbon atoms or the like; and Q.sup.1 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or the like; and others. According to the present invention, it becomes possible to provide: a polymerizable compound that have a practical low melting point, exhibit excellent solubility in a general-purpose solvent, can be produced inexpensively, can be dried at a lower temperature, has excellent energy efficiency, and can produce an optical film that achieves uniform conversion of polarized light over a wide wavelength band; and others. ##STR00001##