Film Forming Photosensitive Materials for the Light Induced Generation of Optical Anisotrophy

摘要

This invention relates to a self supporting or substrate-supported film or layer of a photosensitive material comprising a water insoluble complex having one of the following sum formulae (I) to (IV) n [R-P-R']^ms+ m [T]^n'- (I) or m [T]^n'+ n [R-P-R']^m'- (II) n[R¹-Q-R^1']^m'+ m [T]^n'- (III) or an [T]^n'+ n [R¹-Q-R^1']^m'- (IV) wherein [R-P-R'] and [R¹-Q-R^1'], respectively, are photosensitive tectonic units the photosensitive part of which may undergo a photoreaction, selected from photoisomerizations, photocycloadditions and photoinduced rearrangements, and wherein P is a group capable of photoisomerization, Q is a group capable of participating in a photocycloaddition or photoinduced rearrangement reaction, or in a photooxidation reaction, at least one of R and R' is selected from optionally substituted or functionalized aromatic, preferably aryl-containing groups, and at least one of R and R' is positively or negatively charged, with the proviso that if P is -N-N-, R and R' both are independently selected from optionally substituted or functionalised aromatic, preferably aryl-containing groups, and if P has a different meaning, the other of R and R' can alternatively be or contain a straight or branched aliphatic group, R¹ and R¹ are independently selected either from optionally substituted or functionalized groups, both or at least one of which being an optionally substituted or functionalized aromatic, preferably aryl-containing group while the other alternatively can be or contain a straight or branched aliphatic group, or from such groups which together with Q form an aromatic system, preferably an aryl ring or heteroaryl ring, with the proviso that either at least one of R¹ and R^1' is positively or negatively charged or the ring structure and/or a substituent thereon will carry at least one positive or negative charge, [T] is an organic, tectonic unit carrying at least one positively or negatively charged group and at least one hydrophobic group, and m, m*, n and n* can be freely selected with the proviso that the values of m and m* are identical or do not differ more than 10 % from each other and that the values of n and N* are identical or do not differ more than 10 % from each other, or that the values of n, m* and n*, m are identical or do not differ more than 10 % from each other, or comprising a mixture of such complexes.