tailieuchung - Synthesis and phase transition studies of new dimer compounds connected to a 1,3-dimethylbarbituric acid core

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Synthesis and phase transition studies of new dimer compounds connected to a 1,3-dimethylbarbituric acid core

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A series of dimeric unsymmetrical liquid crystals derived from heterocyclic 1,3-dimethylbarbituric acid exhibiting smectic A and nematic phase are reported. All compounds were prepared by the condensation of 4’-(R-(4- formylphenoxy)butoxy)biphenyl-4-carboxylate with 1,3-dimethylbarbituric acid in ethanol. The mesomorphic properties were investigated by DSC and POM, where the type of phase depends on the length of spacer alkoxy chains and the length of the terminal chain. |

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Synthesis and phase transition studies of new dimer compounds connected to a 1,3-dimethylbarbituric acid core

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Synthesis and phase transition studies of new dimer compounds connected to a 1,3-dimethylbarbituric acid core

Đang chuẩn bị liên kết để tải về tài liệu: Synthesis and phase transition studies of new dimer compounds connected to a 1,3-dimethylbarbituric acid core