Self-assembly and Mechanism of L-Alanine-based Dihydrazide Derivative as Excellent Gelator of Organic Solvents
Self-assembly and Mechanism of L-Alanine-based Dihydrazide Derivative as Excellent Gelator of Organic Solvents
Chuan-Sheng Wang(School of Materials and Metallurgy, Northeastern University); Xiao-Hong Wang(Department of Chemistry, Shenyang University of Chemical Technology); Zhi-Yuan Li(Department of Chemistry, Shenyang University of Chemical Technology); Wei Wei(Department of Chemistry, Shenyang University of Chemical Technology); Zhong-Liang Shi(Department of Chemistry, Shenyang University of Chemical Technology); Zhi-Tong Sui(Northeastern University)
32권 4호, 1258~1262쪽
초록
A new organogelator, L-Alanine dihydrazide derivative can self-assemble in various organic solvents and turned them into thermally reversible physical supramolecular organogels at extremely low concentrations (< 2 wt %). The gel-sol phase transition temperatures (T_(GS)) were determined as a function of gelator concentration and the corresponding enthalpies (ΔH_g) were extracted. Scanning electron microscopy (SEM)measurements revealed that the interspaces of fiber-like network structures were diminished with the increasing of the LMOG concentration. FT-IR spectroscopy studies revealed that hydrogen-bonding and hydrophobic interaction were the driving forces for the formation of the gels. Based on the data of XRD and molecular modeling, the possible packing modes for the formation of organogelator aggregates were proposed.
Abstract
A new organogelator, L-Alanine dihydrazide derivative can self-assemble in various organic solvents and turned them into thermally reversible physical supramolecular organogels at extremely low concentrations (< 2 wt %). The gel-sol phase transition temperatures (T_(GS)) were determined as a function of gelator concentration and the corresponding enthalpies (ΔH_g) were extracted. Scanning electron microscopy (SEM)measurements revealed that the interspaces of fiber-like network structures were diminished with the increasing of the LMOG concentration. FT-IR spectroscopy studies revealed that hydrogen-bonding and hydrophobic interaction were the driving forces for the formation of the gels. Based on the data of XRD and molecular modeling, the possible packing modes for the formation of organogelator aggregates were proposed.
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- 대한화학회
- 분류:
- 화학