摘要
合成了一系列不同链长的质子化吡咯烷类表面活性剂,通过核磁共振和差示扫描量热法进行了结构和热分析,进一步结合变温偏光显微镜进行分析,结果表明,此类化合物通过升温可以形成排列有序的T相热致液晶,形成温度随链长的增加逐渐升高。此类化合物还可以在水中形成胶束,临界胶束浓度随着表面活性剂链长的增加逐渐降低,继续升高表面活性剂浓度,可以形成溶致液晶。
A novel series of protonie pyrrolidinium surfactants with different chain length were prepared and characterized by 1H NMR and differential scanning calorimetry （DSC）. The results from thermal analysis and polarizing optical microscopy （POM） showed that T - phase thermotropie liquid crystal was formed with increasing temperature. The formation temperature of ordered T - phase thermotropie liquid crystal increased gradually with increasing chain length. These eompounds eould form mieelles in water, and the eritieal mieelle concentration （CMC） of surfaetants decreased with increasing chain length. Lyotropie liquid crystal also could he formed with surfactant concentration increased.
出处
《黄石理工学院学报》
2011年第2期29-34,共6页
Journal of Huangshi Institute of Technology
基金
国家自然科学基金项目(项目编号:20973104)
湖北省教育厅重大项目(项目编号:z20104401)
黄石理工学院优秀中青年创新团队(项目编号:801-8591)
关键词
表面活性剂
质子化吡咯烷盐
热致液晶
临界胶束浓度
surfactants
protonic pyrrolidinium
thermotropic liquid crystal
critical micelle concentration
