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Information × Registration Number 0201U001931, 0197U006937 , R & D reports Title TGB phase states in polymorphous liquid crystalline systems of "achiral mesogen - chiral impurity" type popup.stage_title Head Kutulya Lidiya Antonivna, Registration Date 26-02-2001 Organization Institute for Single Crystals Scientific and Technology Association "Institute for Single Crystals" National Academy of Sciences of Ukraine popup.description2 Investigated are phase diagrams for a number of polymer liquid crystalline (LC) systems of different chemical nature based on achiral smectogens (SmA, SmC) and containing chiral impurities. Such systems are found to have TGB (twist grain boundary) mesophases which appear under certain conditions. Studied is the influence of spiral twisting on the formation of TGB phases and their temperature interval. It is established that the presence of smectic C phase (enantiotropic or monotropic) of achiral mesogen, as well as the formation of spiral supermolecular twisting in the system, are significant conditions for the appearance of TGB states in LC systems. Product Description popup.authors popup.nrat_date 2020-04-02 Close