Bis-(4-stearoylaminophenyl) ether (BSADE) can aggregate and self-assemble in water. Transmission electron microscopy (TEM) indicated that the morphology of BSADE aggregates in water was entanglement and thin fiber-like, and that a three dimensional network structure was formed. Water molecules were entrapped in this three dimensional network structure and formed a new type of condensed system (so-called water molecular gel). Water molecular gel is a typical mesoporous material which can be characterized by the fractal dimension D. Using gas adsorption method along with measurement of porosity and specific surface area, the fractal dimension D of the complicated pores was 2.1-2.2 for this water molecular gel. Using viscosity method and the Cayley fractal tree, the fractal dimension D of the fiber-like three dimensional network was determined to be 1.98. The formation process of water molecular gel can be described as nucleation followed by a repeated growing and branching cycle.
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February 2007
Research Article|
February 01 2007
Fractal Study of Mesoporous Structure in Water Molecular Condensed System
Li Wang;
Li Wang
Department of Chemistry, Huazhong University of Science and Technology, Wuhan 430074,
China
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Ya-Jiang Yang
Ya-Jiang Yang
Department of Chemistry, Huazhong University of Science and Technology, Wuhan 430074,
China
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Chin. J. Chem. Phys. 20, 17–21 (2007)
Article history
Received:
April 21 2006
Accepted:
June 04 2006
Citation
Li Wang, Ya-Jiang Yang; Fractal Study of Mesoporous Structure in Water Molecular Condensed System. Chin. J. Chem. Phys. 1 February 2007; 20 (1): 17–21. https://doi.org/10.1360/cjcp2007.20(1).17.5
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