8OCB + 10OCB的液晶二元混合物。近晶A相到向列相三临界点的证据。
Liquid crystal binary mixtures of 8OCB + 10OCB. Evidence for a smectic A-to-nematic tricritical point.
作者信息
Sied Mohamed B, Diez Sergio, Salud Josep, López David O, Cusmin Paul, Tamarit Josep Ll, Barrio María
机构信息
Laboratori de Caracterització de Materials (LCM), Departament de Física i Enginyeria Nuclear, ETSEIB Universitat Politècnica de Catalunya, Diagonal 647, 08028 Barcelona, Spain.
出版信息
J Phys Chem B. 2005 Sep 1;109(34):16284-9. doi: 10.1021/jp051957x.
The two-component system octyloxycyanobiphenyl (8OCB) + decyloxycyanobiphenil (10OCB) has been studied by means of modulated differential scanning calorimetry as well as optical microscopy. The general trends of the phase diagram are similar to the two-component system octylcyanobiphenyl (8CB) + decylcyanobiphenil (10CB), previously published. Evidence for the existence of a TCP have been reported, the molar composition being about 0.33 of 10OCB. Additionally, the smectic mesophase of the 8OCB + 10OCB mixtures has been unmistakably characterized through optical measurements as smectic A for the whole composition range.
已通过调制差示扫描量热法以及光学显微镜对双组分体系辛氧基氰基联苯（8OCB）+癸氧基氰基联苯（10OCB）进行了研究。相图的总体趋势与先前发表的双组分体系辛基氰基联苯（8CB）+癸基氰基联苯（10CB）相似。已报道了存在一种TCP的证据，其摩尔组成为10OCB的约0.33。此外，通过光学测量明确表征了8OCB + 10OCB混合物的近晶相在整个组成范围内均为近晶A相。
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