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Abstract
Polarized light microscopy was used to investigate blue phase formation in mixtures of the chiral nematic (+)-2-methylbutyl p-[(p-methoxybenzylidene)amino]-cinnimate (MBMBAC) and the nematic side chain polymer composed of cyanophenyl benzoate monomer (CBZ6) copolymerized with 10% of 2-hydroxy ethyl acrylate (HEA). The phase diagram and textures are compared to the case in which the polymer was replaced by the low molecular weight nematic p-azoxyanisole (PAA).