Thermal annealing behaviour and gel to crystal transition of a low molecular weight hydrogelator
MetadataShow full item record
The thermal annealing behaviour of an electrolyte-triggered calixarene hydrogelator is found to depend strongly on the specific metal chloride used. While the lithium chloride gel showed typical gel-sol transitions as a function of temperature, the magnesium chloride gel was found to repeatedly strengthen with heat-cool cycles. Structural investigations using small-angle neutron scattering, and scanning probe microscopy, suggest that the annealing behaviour is associated with a change in morphology of the fibrous structures supporting the gel. On prolonged standing at room temperature, the magnesium chloride gel underwent a gel-crystal transition, with the collapsing gel accompanied by the deposition of crystals of a magnesium complex of the proline-functionalised calixarene gelator.
Showing items related by title, author, creator and subject.
Ammonia-induced precipitation of zirconyl chloride and zirconyl-yttrium chloride solutions under industrially relevant conditionsCarter, Geoffrey; Ogden, Mark; Buckley, Craig; Maitland, Clinton; Paskevicius, Mark (2008)The influence of concentration and added chloride salts on the solution speciation of zirconyl chloride solutions, and the precipitate formed upon addition of aqueous ammonia, has been investigated. Crystalline zirconium ...
Cuartero, M.; Acres, R.; Bradley, J.; Jarolimova, Z.; Wang, L.; Bakker, E.; Crespo, G.; De Marco, Roland (2017)© 2017 Cyclic voltammetry (CV) in chloride-based aqueous electrolytes of ferrocene molecule doped thin membranes (~200 nm in thickness) on glassy carbon (GC) substrate electrodes, both plasticized poly(vinyl chloride) ...
Time and cold joint effect on chloride diffusion in concrete containing GGBFS under various loading conditionsYang, H.; Lee, H.; Yang, K.; Ismail, Mohamed; Kwon, S. (2018)The stress due to volume change causes cracking in concrete, so that construction joint is intentionally prepared for an efficient construction and crack controlling in mass concrete structure. Cold joint means a weak ...