Dye-assisted structural modulation of hydrogen-bonded binary supramolecular polymers

被引：51

作者：

Yagai, S ^{[1
]}

Higashi, M ^{[1
]}

Karatsu, T ^{[1
]}

Kitamura, A ^{[1
]}

机构：

[1] Chiba Univ, Fac Engn, Dept Appl Chem & Biotechnol, Inage Ku, Chiba 2638522, Japan

来源：

CHEMISTRY OF MATERIALS | 2005年 / 17卷 / 17期

关键词：

D O I：

10.1021/cm0510413

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：

Binary hydrogen-bonded supramolecular polymers composed of a dimeric melamine (bis(melamine)) and barbiturate-type merocyanine dyes are prepared in aliphatic solvents. Macroscopic structure and rheological behavior of the supramolecular polymers are investigated by scanning electron microscopic observation and dynamic rheological measurement. Despite conformational flexibility in the bis(melamine) component, supramolecular polymers exhibit well-defined one-dimensional fibrous or two-dimensional sheetlike macroscopic structures, which are dependent on the blended merocyanine dyes. UV-vis studies of the supramolecular polymerization in dilute solutions imply that the merocyanine dyes exist as selfaggregated state upon supramolecular polymerization with the bis(melamine) component. This observation strongly suggests the presence of secondary structures of the quasi-one-dimensional flexible supramolecular polymers.

引用

页码：4392 / 4398

页数：7

共 62 条

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