Preparation and Self-Assembly Study of Amphiphilic and Bispolar Diacetylene-Containing Glycolipids
作者:Guijun Wang、Navneet Goyal、Hari P. R. Mangunuru、Hao Yang、Sherwin Cheuk、Puram V. Narasimha Reddy
DOI:10.1021/jo501568u
日期:2015.1.16
be useful in sensing local environmental changes, we have synthesized a series of novel diacetylene-containing amide and urea derivatives using d-glucosamine as the starting material. Both amphiphilic and dipolar glycolipids were synthesized, and these compounds are effective gelators for several organic solvents and aqueous solutions. The resulting gels can be cross-linked under 6 W UV light to produce
含二乙炔的糖脂是一类独特的化合物,能够自组装并形成有序的超分子结构。可以用作低分子量胶凝剂的可聚合二乙炔糖脂是特别令人感兴趣的分子,可以导致刺激反应灵敏的智能材料。为了发现具有内置功能的有效有机胶凝剂,该胶凝剂可用于感测局部环境变化,我们使用d合成了一系列新颖的含二乙炔的酰胺和脲衍生物-氨基葡萄糖为起始原料。合成了两亲和偶极糖脂,这些化合物是几种有机溶剂和水溶液的有效胶凝剂。所得的凝胶可以在6 W紫外线下交联,产生蓝色或紫色的聚二乙炔凝胶。由脲衍生物获得的交联凝胶通常是深蓝色,并且在加热时表现出蓝色至红色的转变。与脲衍生物相比,类似的二乙炔酰胺可产生蓝色至深紫色的聚合凝胶,具体取决于胶凝剂的结构。通过光学显微镜和扫描电子显微镜表征凝胶的形态。通常,观察到自组装纤维网络。