科研之友
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摘要
A novel amphiphilic compound (1) comprising a semi-perfluorinated alkyl chain and a 2,3-difluoro-1, 4-diphenylbenzene core has been prepared and its physical properties investigated using optical microscopy, differential scanning calorimetry and X-ray diffraction. The compound exhibited SmA and SmC phases. The maximum layer contraction in the SmC phase was found to be 2.0% at T -T(AC) = -40 K, and the optical tilt angle was 21.8 degrees. The electro-optical properties of a mixture of the compound with a ferroelectric liquid crystal were investigated, and it was found that the chiral mixture exhibited fast electro-optical switching, with a response time of 10 mu s in the chiral SmA phase, in spite of the absence of the SmC* phase.
- 出版日期2011
