College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Dandong Lu West 1, Fushun 113001, Liaoning, P. R. China.
Soft Matter. 2017 Jun 7;13(22):4066-4073. doi: 10.1039/c7sm00797c.
A series of phthalic acid derivatives (P) with a carbon-chain tail was designed and synthesized as single-component gelators. A combination of the single-component gelator P and a non-gelling additive n-alkylamine A through acid-base interaction brought about a series of novel phase-selective two-component gelators PA. The gelation capabilities of P and PA, and the structural, morphological, thermo-dynamic and rheological properties of the corresponding gels were investigated. A molecular dynamics simulation showed that the H-bonding network in PA formed between the NH of A and the carbonyl oxygen of P altered the assembly process of gelator P. Crude PA could be synthesized through a one-step process without any purification and could selectively gel the oil phase without a typical heating-cooling process. Moreover, such a crude PA and its gelation process could be amplified to the kilogram scale with high efficiency, which offers a practical economically viable solution to marine oil-spill recovery.
设计并合成了一系列具有碳链尾部的邻苯二甲酸衍生物（P）作为单组分凝胶剂。通过酸碱相互作用，将单组分凝胶剂 P 和非凝胶添加剂 n-烷基胺 A 组合在一起，得到了一系列新型的相选择性的两亲性凝胶剂 PA。研究了 P 和 PA 的凝胶能力，以及相应凝胶的结构、形态、热力学和流变学性质。分子动力学模拟表明，在 PA 中，A 的 NH 与 P 的羰基氧之间形成的氢键网络改变了凝胶剂 P 的组装过程。粗 PA 可以通过一步法合成，无需任何纯化，并且可以选择性地凝胶油相，而无需典型的加热-冷却过程。此外，这种粗 PA 及其凝胶化过程可以高效地放大到公斤级规模，为海洋溢油回收提供了一种实际可行的经济解决方案。
