期刊
MATERIALS
卷 3, 期 2, 页码 827-840出版社
MDPI
DOI: 10.3390/ma3020827
关键词
liquid crystalline texture; nematic phase; smectic phase
类别
资金
- National Science Foundation [CHE-0832622]
The liquid crystalline dimer of 4-(4-pentenyloxy) benzoic acid, a member of the n-alkoxybenzoic acid homologous series, was synthesized using potassium carbonate supported on alumina as catalyst. The acid dimer complex exhibited three mesophases; identified as nematic, smectic X1 and smectic X2. Phase transition temperatures and the corresponding enthalpies were recorded using differential scanning calorimetry upon both heating and cooling. The mesophases were identified by detailed texture observations by variable temperature polarized light microscopy. The nematic phase was distinguished by a fluid Schlieren texture and defect points (four and two brushes) while the smectic phases were distinguished by rigid marble and mosaic textures, respectively.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据