Entropically driven formation of ultralong helical mesostructured organosilica nanofibers.
Small
; 10(5): 888-94, 2014 Mar 12.
Article
en En
| MEDLINE
| ID: mdl-24173957
ABSTRACT
Ultralong helical organosilica nanofibers (length up to millimeter) with ordered helical mesoporous channels are synthesized using achiral cationic surfactant as single-structure-directing agent and anionic citrate as counterions. The surfactant molecules form micelles for silica condensation and the counterions reduce the polarity of the surfactant-silicate micelles via electrostatic balance, leading to the self-assembly and growth of the final product. The detailed mechanistic shape-shifting studies reveal that an entropy increase is the main driving force behind the plastic deformation of the solids.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
Small
Asunto de la revista:
ENGENHARIA BIOMEDICA
Año:
2014
Tipo del documento:
Article
País de afiliación:
China