Figure 35.

(A) Schematic demonstration of the combined biorefinery model with green chemistry principles, extracting reagents from waste and biomass resources to develop functional materials from value-added chemicals; (B) synthetic scheme for the development of novel medium- and long-chain triglyceride gelators following the model; (C) 1H NMR spectra of RKG8 mixtures in toluene: a close-up on the shifting carbohydrate peaks. The bottom spectra (B–E) are in the gel state, and the top spectrum (A) is a solution. There is a shift in the pyranose hydrogen at the C1 position δ 4.9 following the stretched hydrogen bond in the gel that then relaxes when the molecules are in solution.; (D) (Left) FTIR spectra of oleogel and bulk gelators samples; (right) hydrogen bonding region displays weak O–H peaks in the gel spectrum. Reprinted with permission from [139]. Copyright 2015 American Chemical Society.