標題: | A supramolecular gel based on a glycosylated amino acid derivative with the properties of gel to crystal transition |
作者: | Liu, Jie Xu, Fengyang Sun, Ziling Pan, Yue Tian, Jian Lin, Hsin-Chieh Li, Xinming 材料科學與工程學系 Department of Materials Science and Engineering |
公開日期: | 1-一月-2016 |
摘要: | Here we report the generation of a novel gelator from a glycosylated amino acid derivative, which contained three structural units, an aromatic residue, a carbohydrate moiety and a tert-butyl group in a single molecule. These structural units can promote the supramolecular self-assembly of this gelator in both aprotic and protic solvents via coordinated pi-pi stacking, multiple hydrogen binding and van der Waals interactions. More importantly, due to their non-equilibrium natures, the organogels formed in DCM, chloroform and ethanol can undergo gel to crystal transition in storage, driven by unbalanced gelator-gelator and solvent-gelator interactions. In this process, the gelators were firstly trapped in a kinetically favorable gel state, and then transferred into a more thermodynamically stable crystal state upon ageing, with the generation of microcrystals in different morphologies. |
URI: | http://dx.doi.org/10.1039/c5sm02111a http://hdl.handle.net/11536/129512 |
ISSN: | 1744-683X |
DOI: | 10.1039/c5sm02111a |
期刊: | SOFT MATTER |
Volume: | 12 |
起始頁: | 141 |
結束頁: | 148 |
顯示於類別: | 期刊論文 |