Please use this identifier to cite or link to this item:
|Title:||Creating new supramolecular materials by architecture of three-dimensional nanocrystal fiber networks|
|Authors:||Liu, X.Y. |
|Citation:||Liu, X.Y., Sawant, P.D., Tan, W.B., Noor, I.B.M., Pramesti, C., Chen, B.H. (2002-12-18). Creating new supramolecular materials by architecture of three-dimensional nanocrystal fiber networks. Journal of the American Chemical Society 124 (50) : 15055-15063. ScholarBank@NUS Repository. https://doi.org/10.1021/ja0206137|
|Abstract:||The architecture of three-dimensional interconnecting self-organized nanofiber networks from separate needlelike crystals of L-DHL (lanosta-8,24-dien-3β-ol:24,25-dihydrolanosterol = 56:44) in diisooctylphthalate has been achieved for the first time, on the basis of the completely new concept of branching creation by additives (branching promoters). [In this work, an additive, ethylene/vinyl acetate copolymer (EVACP), is used at a concentration of several 10 ppm.] We demonstrate that this novel technique enables us to produce previously unknown self-supporting supramolecular functional materials with tailormade micro- or nanostructures, possessing significantly modified macroscopic properties, by utilizing materials thus far considered to be "useless". In addition, both the self-organized structure and the properties of the new materials can be fine-tuned by altering the processing conditions. Our results show that the formation of the interconnecting 3D self-organized network structure is controlled by a new mechanism, so-called crystallographic mismatch branching mechanism, as opposed to the conventionally adopted molecular self-assembly mechanism. The principles and criteria for the selection of branching promoters are also discussed from the point of view of molecular structures.|
|Source Title:||Journal of the American Chemical Society|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 14, 2019
WEB OF SCIENCETM
checked on Jan 29, 2019
checked on Feb 2, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.