\r宋 健，张宝浩，陈世鹏，阮 凯，张 宝，王富民\r
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AuthorsHTML:\r宋 健，张宝浩，陈世鹏，阮 凯，张 宝，王富民\r
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AuthorsListE:\rSong Jian，Zhang Baohao，Chen Shipeng，Ruan Kai，Zhang Bao，Wang Fumin


AuthorsHTMLE:\rSong Jian，Zhang Baohao，Chen Shipeng，Ruan Kai，Zhang Bao，Wang Fumin


Unit:\r天津大学化工学院，天津 300350


Unit_EngLish:\rSchool of Chemical Engineering and Technology，Tianjin University，Tianjin 300350，China


Abstract_Chinese:\r近几年来，超分子有机胶凝剂因具有易合成、多刺激响应等优良特性，在油水分离、新型自修复材料等领域获得广泛关注．通过将凝胶剂2，4-(3，4-二氯苯亚甲基)-D-葡萄糖酰十八胺的侧链替换为带有顺式C＝C 的油胺，制备了新型的凝胶剂B18．该凝胶剂对芳烃、烷烃及油品具有出色的室温相选择凝胶性能，此外，所形成的凝胶均具有自修复性和透明性．通过流变学破坏恢复实验研究了B18 凝胶的自修复性能．利用B18 的粉末室温凝胶性能，模拟了对芳烃及原油的回收实验，结果表明B18 对芳烃及原油均具有快速凝胶能力，凝胶后的油品可通过打捞实现油水分离．此外，通过红外光谱证明了分子间自组装驱动力；通过X 射线衍射实验及理论计算证明在侧链引入顺式C＝C，降低了侧链间的局部结晶，增强了B18在烃类溶剂中的室温凝胶性能．


Abstract_English:\rIn recent years, supramolecular organogelators have attracted attention in oil-water separation and selfrepairing materials due to their excellent properties，such as easy synthesis and multi-stimuli-responsive properties. By replacing the side chain of the gelator 2，4-(3，4-dichlorobenzylidene)-D-glucosyloctadecylamine with oleylamine
which contains a cis C＝C in the middle of the chain，a novel gelator B18 was prepared. Gelator B18 has a rapid room-temperature phase-selective gelation capability for aromatics，alkanes，and oils. Additionally，the B18 gel showed self-healing properties and transparency. The self-healing property of B18 gel was studied through a rheology test. The recovery experiments of leaked aromatics and spilled oils were simulated using the B18 powder at room temperature. The driving force of intermolecular self-assembly was proven by infrared spectroscopy. X-ray diffraction experiments and theoretical calculations showed that the introduction of cis C＝C in the side chain reduces the local crystallization between the side chains and enhances the room-temperature gel properties of B18 in hydrocarbon solvents.


Keyword_Chinese:凝胶；自修复；相选择有机凝胶剂


Keywords_English:gel；self-healing；phase-selective organogelator



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