PB09 Structure and properties of photo-reactive liquid crystals composed of unsaturated carboxylic acid derivatives

Abstract

1,3-Alkadiynyl-4-benzoic acids (mPhDA) form discotic liquid crystals while 1,3-Alkadienyl-4-benzoic acids (mPhDE) and 1,3-Alkadienoic acids (mDE) form a nematic liquid crystal. In addition, mPhDA gives oligomers, mPhDE and mDE no oligomer under UV irradiation in the liquid-crystalline state. In this study, we prepared mixed liquid crystals from different mesogen molecules and co-crystals with azopyridine and bipyridine compounds, we examined the liquid-crystalline structures and polymerization properties of these compounds.