Synthesis Of Organic Gelator With Alkyl Pyrine And Properties Of Gelatine And Fluorescence

Low molecular organogels (LMOGs) Gels are heterogeneous soft materials , a kind of matter at the interface between"complex fluids"and phase-separated states, whose colloidal aggregate are linked in complex, three dimensional networks that immobilize the liquid component to a variable extent (principally) by surface tension. More and more functional gels have attracted much attention for their unique chemical structures and tremendous appalications, such as organic functional materials, template synthesis, drug delivery and so on. In this paper, three organogelators(a6,b6 or c6)based on pyrine were synthesized, which hadn't been reported before. As pyrine group was good protic acceptor, researches on binary organolgels, which showed unique photo physical properties were carried out using a6,b6 or c6 as the protic acceptor, and tartaric acid or amino acid as the protic donor. The main study was concluded as follows:1. Synthesis of three target products by changing the alkyl chains, the structures of which are using 4-hydroxy-4-styryl pyridine as the core group. Their molecular structures are confirmed by 1H NMR, FT-IR,MS and Element analysis .2. The gelation properties of the synthesized compounds (a6,b6 or c6) were discussed in detail. Comparisons on the stability of the gels were made between the single component gel systems and the binary gel systems in several aspects such as the minimum gelling concentration (Cm) and the phase transition temperature (Tgel). The microscopic morphologies of the single and two component gel systems in different solvents were confirmed by SEM and TEM.3. The fluorescent properties of the single and binary gel systems were explored; Much focus was made on the fluorescence changes between the solution state of the two component systems and the gel state. Besides, another study was also made on fluorescence changes and the stability of the gels with the addition of different metal ions.