Mesogen-Free Supramolecular Liquid Crystalline State Formed by a Polyelectrolyte/Amphiphile Complex
✍ Scribed by Surong Zhou; Haifeng Shi; Ying Zhao; Shichun Jiang; Yonglai Lu; Yuanli Cai; Dujin Wang; Charles C. Han; Duanfu Xu
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 205 KB
- Volume
- 26
- Category
- Article
- ISSN
- 1022-1336
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✦ Synopsis
Abstract
Summary: The microstructure and phase transformation of a highly‐branched polyethyleneimine/octadecanoic acid (PEI(OA)~1.0~) complex were investigated using a combination of DSC, XRD, optical polarised microscopy and temperature dependent FT‐IR spectroscopy. A mesogen‐free thermotropic liquid crystalline state was observed in a certain temperature region. The strong ionic interaction between COO^−^ (from OA) and NH (from PEI) and the hydrophobic interaction between the alkyl side chains contributes to the formation of a thermotropic liquid crystalline structure.
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