Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.
J Phys Chem B. 2013 Jul 11;117(27):8293-9. doi: 10.1021/jp405480h. Epub 2013 Jul 2.
Thermodynamic and diffraction analyses were performed to establish the phase diagram for a binary system between 4-n-nonyl-4'-isothiocyanatobiphenyl (9TCB) and n-nonane. The swollen SmE structure is identified in the binary system. Upon swelling, a characteristic two-dimensional herringbone array is maintained whereas the layer spacing of SmE structure increases with the content of n-nonane. Considering the difficulties in explaining the experimental findings based on the traditional model of SmE structure, a new model, lamellar with two types of sublayers consisting of aromatic core and alkyl chain moieties, is proposed.
对 4-正-壬基-4'-异硫氰酸基联苯（9TCB）和正壬烷之间的二元体系进行了热力学和衍射分析，以建立其相图。在二元体系中鉴定出溶致各向异性相 SmE。在溶胀过程中，保持特征的二维人字形排列，而 SmE 结构的层间距随正壬烷含量的增加而增加。考虑到基于 SmE 结构的传统模型难以解释实验结果，提出了一种新的模型，该模型由包含芳核和烷基链部分的两种类型的亚层组成的层状结构。
