Preparation and Characterization of Binary Organogels via Some Azobenzene Amino Derivatives and Different Fatty Acids: Self-Assembly and Nanostructures

Table 1

Gelation behaviors of these binary organogels.

Solvents	C18-Azo	C16-Azo	C14-Azo	C12-Azo	C18-Azo-Me	C16-Azo-Me	C14-Azo-Me	C12-Azo-Me
Acetone	S	S	S	S	S	S	S	S
Aniline	PS	PS	S	PS	PS	S	PS	S
n-Hexane	S	PS	PS	PS	S	PS	PS	S
Toluene	PS	S	S	S	PS	S	S	S
Pyridine	S	S	S	S	S	S	S	S
Isopropanol	S	S	S	S	S	S	S	S
Cyclopentanone	PS	S	S	PS	S	S	S	S
Cyclohexanone	S	S	S	S	S	S	S	S
Nitrobenzene	PS	G (2.0)	PS	PS	PS	S	S	S
n-Butanol	S	S	S	S	S	S	S	S
Ethanolamine	G (2.5)	G (2.0)	G (2.0)	S	G (2.5)	G (2.0)	S	S
n-Butyl acrylate	PS	S	S	PS	PS	S	S	S
1,4-Dioxane	S	S	S	S	S	S	S	S
Petroleum ether	S	PS	PS	S	S	PS	PS	PS
Ethyl acetate	S	S	S	PS	S	S	S	S
Dichloromethane	PS	PS	S	PS	S	S	S	S
THF	S	S	S	S	S	S	S	S
DMF	PS	S	S	PS	PS	S	S	S
DMSO	S	S	S	S	S	PS	S	S
Benzene	S	S	S	PS	S	PS	S	S

DMF: dimethylformamide; THF: tetrahydrofuran; DMSO: dimethyl sulfoxide; S: solution; PS: partially soluble; G: gel; I: insoluble; for gels, the critical gelation concentrations at room temperature are shown in parentheses (% w/v).