NOVEL PYRROLE MONOMER, PROCESS FOR PREPARING THE SAME, AND FUNCTIONAL POLYMER FILM.

摘要

A compound represented by general formula (I), wherein R1 and R2 are selected so as to form a combination wherein at least one of them functions as an electron attractive group; R1 represents hydrogen, cyano, alkyl, either phenyl or benzyl, COR3 (wherein R3 represents an alkyl, phenyl or benzyl), or -COOR4 (wherein R4 represents hydrogen, alkyl, phenyl or benzyl); and R2 represents a group of formula (II), wherein Y represents an alkylene having 1 to 12 carbon atoms, phenylene, -Co-, -COO-, -COOalk.-, -COOalkO-, -COOalkN(R8)-(wherein R8 represents an alkyl) or -alkO- (wherein alk represents an alkylene having 1 to 12 carbon atoms); Z represents -HC=CH-, -CH=NNH-, -N=N(O)-, -C=C-, -COO-, -N=N-, -S-or a direct bond; and r represents hydrogen, nitro, cyano, halogen, either alkyl or alkoxy, -COR5 (wherein R5 represents an alkyl or phenyl), -COOR6 or OCOR7 (wherein R6 and R7 represent hydrogen, alkyl or phenyl). The polymer film can interchange the various functions (light, electricity, pressure, etc.) possessed by liquid crystal molecules.