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The synthesis of a new type of combined polymers containing both disc‐ and rod‐like mesogens is reported. The polyesters, having a triphenylene derivative as a discotic mesogen in the side group and azobenzene or biphenyl derivatives as rod‐like mesogens in the main chain were characterized by polarizing microscopy, differential scanning calorimetry, and X‐ray scattering studies. The homopolymer 7 is highly crystalline, while the copolymer 8 is amorphous, both, however, do not form liquid‐crystalline phases.
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Karthaus et al. (1992) studied this question.
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