Rheological Properties of Gels from Pyrene Based Low Molecular Weight Gelators.

Autor: Leivo, Kimmo T., Hahma, Arno P.
Předmět:
Zdroj: AIP Conference Proceedings; 7/7/2008, Vol. 1027 Issue 1, p1351-1353, 3p, 1 Black and White Photograph, 1 Diagram, 1 Graph
Abstrakt: Gels of pyrene derived low molecular weight organogelators (LMOGs) in primary alcohols have been characterized by rheometry and scanning electron microscopy. Total gelator concentration was 1–2.7 % w/w depending on the solvent and the gelator, including equimolar amounts of the gelator and 2,4,7-trinitrofluorenone (TNF), which is necessary for gelation. Thermoreversible and strongly shear thinning gels were achieved as the two components interact non-covalently to form a gel network. A qualitative correlation between the rheological properties and the nanoscale gel structure were found. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index