Molecular design, gel properties, and anti-settling ability with natural rosin-based sulfonamide compounds regulated by conjugation

Design and Properties of Novel Hydrophobic Natural Tea Saponin and Its Organogels

“…It was seen that the concentration of 15 wt% of DC-TS gelling agent made the cyclohexane-trichloromethane mixed solvent system produce a stable gel system, the laminar stacked structure formed by the aggregation of the gel system had a strong mechanical strength, and the elastic modulus G ′ was greater than its viscous modulus G ′′ in accordance with the significant characteristics of the gel. Compared with hydrogels, the G ′ and G ′′ of small-molecule organogels of natural products are close to each other [22,23], which may be because the driving forces of the formed gels are weak, and the elasticity of the gel is insufficient.…”

“…strength, and the elastic modulus G′ was greater than its viscous modulus G″ in accordance with the significant characteristics of the gel. Compared with hydrogels, the G′ and G″ of small-molecule organogels of natural products are close to each other [22,23], which may be because the driving forces of the formed gels are weak, and the elasticity of the gel is insufficient.…”

“…Physical gels are formed mainly by the self-assembly After selecting the appropriate strain, the test of the elastic modulus G ′ , the viscous modulus G ′′ , and the variation with shear frequency of the DC-TS organogel was started using the oscillation mode [21]. As shown in Figure 6, in the 0.1-50 Hz range of shear frequency [21,22], the modulus of the gel system did not change significantly with the change in the shear frequency, and the elastic modulus G ′ of the samples were all larger than their viscous modulus G ′′ , showing typical elastic fluid properties with elastic modulus values of about 7800 Pa and viscous modulus values of about 3700 Pa. When the shear frequency reached 50 Hz, the intersection of the elastic modulus G ′ and the viscous modulus G ′′ occurred, the elastic modulus G ′ was smaller than its viscous modulus G ′′ , and the organogel network was disrupted and changed from an elastomeric to a viscous flow state.…”

Preparation and application of rosin@apatite hybrid material with new natural surfactants based on in-situ reaction by sol-gel method

“…Here, the organic-AP inorganic hybrid material by medium-low temperature sol-gel method are constructed. The organic compound designed in the hybrid material is natural terpene rosin acid [23,24] which has the advantages of high yield, low cost, high biocompatibility . What's more, the rigid tricyclic skeleton of dehydroabietic acid, could afford the hybrid material a large molecular packing parameter.…”