作者:Thibault Dutronc、Emmanuel Terazzi、Laure Guénée、Kerry‐Lee Buchwalder、Sébastien Floquet、Claude Piguet
DOI:10.1002/chem.201503420
日期:2016.1.22
and entropy changes responsible for successive phase transitions of cyanobiphenyl‐based liquid crystals can be combined to give cohesive free energy densities. These new parameters are able to rationalize and quantify the demixing of the melting and clearing processes that occur in thermotropic liquid crystals. Minor structural variations at the molecular level can be understood as pressure increments
这项工作说明了如何将负责氰基联苯基液晶的连续相变的焓变和熵变组合在一起以产生内聚的自由能密度。这些新参数能够合理化和量化发生在热致液晶中的熔化和清除过程的混合。分子水平的微小结构变化可以理解为以可预测的方式改变熔化或清除温度的压力增量。在两亲分子中进行的微偏析的评估为液晶相存在域的化学编程铺平了道路。