PA20 バナナ型液晶におけるナノ相分離と極性構造の起源(物理・物性)

概要

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In the titled polar smectic phase (SmCP) of bent-core mesogens, two layer chiralities and four distinct states have been proposed and observed in the B_2 and B_7 phases. However it has not been clear what the factor does determine the most stable structure in the SmCP phase. One report suggested that the steric interaction between molecular end-chains at the interface of adjacent layers is very important to determine the polar order and clinicity. In this study, hydrocarbon molecules were added to change the interlayer interaction in the SmCP phase of bent-core mesogens. We found that the ground state of the B_2 phase in mixtures of P10PIMB and n-hexadecane was changed from SmC_SP_A to SmC_AP_A and the B_2 phase suppressed with n-hexadecane above 20wt%.
日本液晶学会の論文
2003-10-14