Structure and Dynamics of a Bisurea-Based Supramolecular Polymer in n-Dodecane

The structure and dynamics of a supramolecular polymer formed by a bisurea-type compound, 2,4-bis(2-ethylhexylureido)toluene (EHUT), in an apolar solvent, n-dodecane (C12), were examined in detail. The EHUT/C12 organo-gel system forms long, dynamic chain-like supramolecular polymers, which lead to a...

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Bibliographic Details
Published in:The journal of physical chemistry. B 2008-07, Vol.112 (29), p.8459-8465
Main Authors: Shikata, Toshiyuki, Nishida, Takuya, Isare, Benjamin, Linares, Mathieu, Lazzaroni, Roberto, Bouteiller, Laurent
Format: Article
Language:English
Subjects:
B: Macromolecules, Soft Matter
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Summary:The structure and dynamics of a supramolecular polymer formed by a bisurea-type compound, 2,4-bis(2-ethylhexylureido)toluene (EHUT), in an apolar solvent, n-dodecane (C12), were examined in detail. The EHUT/C12 organo-gel system forms long, dynamic chain-like supramolecular polymers, which lead to an entangled network showing remarkable viscoelastic behavior with two major relaxation modes. A slow relaxation mode with an approximately constant relaxation time, τS, was observed in a flow region and the other, fast, relaxation mode with a time τF1 (
ISSN:1520-6106
1520-5207
DOI:10.1021/jp800495v