Columnar liquid crystalline phases through hydrogen bonding and nanoscale segregation

被引：43

作者：

Goldman, D

Janietz, D

Schmidt, C

Wendorff, JH

机构：

[1] Univ Potsdam, Dept Chem, D-14513 Teltow, Germany

[2] Univ Potsdam, Inst Thin Layer Technol & Mikrosensor, D-14513 Teltow, Germany

[3] Univ Marburg, Inst Phys Chem, D-35032 Marburg, Germany

[4] Univ Marburg, Sci Ctr Mat Sci, D-35032 Marburg, Germany

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2004年 / 14卷 / 10期

关键词：

D O I：

10.1039/b400781f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Two columnar phases forming 2,4,6-triarylamino-1,3,5-triazines have been investigated in binary mixtures with calamitic and non-liquid crystalline benzoic acids carrying one or two alkoxy chains at the aromatic core. The triazines form hydrogen bonded aggregates with the complementary acids. Each investigated equimolar mixture exhibits a columnar mesophase due to segregation of the H-bonded polar core region from the lipophilic aliphatic molecular segments. The cross sectional shape of cylindrical aggregates and, therefore, the two-dimensional lattice symmetries, hexagonal or rectangular, are defined by the number of alkoxy chains of the benzoic acid component.

引用

页码：1521 / 1525

页数：5

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