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|Title:||Kinetic studies of spherulitic crystallization in the gelation process of low molecular-mass organic gelator|
|Authors:||Wang, R. |
Low molecular-mass organic gelator
|Citation:||Wang, R.,Liu, X.-Y. (2006-08). Kinetic studies of spherulitic crystallization in the gelation process of low molecular-mass organic gelator. International Journal of Nanoscience 5 (4-5) : 645-649. ScholarBank@NUS Repository.|
|Abstract:||Spherulite is an important crystal growth form in many organic and inorganic substances. In the sol-to-gel transition of the N-lauroyl-L-glutamic acid di-n-butylamide (GP-1)/propylene glycol (PG) system, the formation of spherulitic fiber network was observed in situ by optical microscopy. The growth mechanism of the spherulite in the gelation process was examined quantitatively. A constant growth rate along the radial direction of the spherulite was ascribed to the surface kinetics controlling mechanism, in which a constant supersaturation throughout the spherulitic growth may be induced by the topological structure of the densely branching morphology in this gel network. Our results also indicate that the engineering of a fiber gel network can be attained via crystallization strategies, since spherulitic growth is a typical example that construction of supramolecular structure occurs as a consequence of the crystallization from dilute solutions. © World Scientific Publishing Company.|
|Source Title:||International Journal of Nanoscience|
|Appears in Collections:||Staff Publications|
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