Interfacial Self-Organization of Bolaamphiphiles Bearing Mesogenic Groups: Relationships between the Molecular Structures and Their Self-Organized Morphologies

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• 作者：Bo Song ; Guanqing Liu ; Rui Xu ; Shouchun Yin ; Zhiqiang Wang ; Xi Zhang
• 刊名：Langmuir
• 出版年：2008
• 出版时间：April 15, 2008
• 年：2008
• 卷：24
• 期：8
• 页码：3734 - 3739
• 全文大小：352K
• 年卷期：v.24,no.8(April 15, 2008)
• ISSN：1520-5827

文摘

This article discusses the relationship between the molecular structure of bolaamphiphiles bearing mesogenic groupsand their interfacial self-organized morphology. On the basis of the molecular structures of bolaamphiphiles, wedesigned and synthesized a series of molecules with different hydrophobic alkyl chain lengths, hydrophilic headgroups,mesogenic groups, and connectors between the alkyl chains and the mesogenic group. Through investigating theirinterfacial self-organization behavior, some experiential rules are summarized: (1) An appropriate alkyl chain lengthis necessary to form stable surface micelles; (2) different categories of headgroups have a great effect on the interfacialself-organized morphology; (3) different types of mesogenic groups have little effect on the structure of the interfacialassembly when it is changed from biphenyl to azobenzene or stilbene; (4) the orientation of the ester linker betweenthe mesogenic group and alkyl chain can greatly influence the interfacial self-organization behavior. It is anticipatedthat this line of research may be helpful for the molecular engineering of bolaamphiphiles to form tailor-mademorphologies.