Liquid Tubule Formation and Stabilization Using Cellulose Nanocrystal Surfactants
Liquid Tubule Formation and Stabilization Using Cellulose Nanocrystal Surfactants
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DOI：
10.1002/anie.201706839
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发表时间：
2017-10-02
影响因子：
16.6
通讯作者：
Russell, Thomas P.
中科院分区：
文献类型：
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作者：
Liu, Xubo;Shi, Shaowei;Russell, Thomas P.
由纳米颗粒（NP）-表面活性剂在液/液界面处的界面形成、组装和堵塞产生的结构化液体保持每种液体的所有期望特性，同时提供空间结构化框架。在这里，我们表明，棒状纤维素纤维素（CNC）为基础的NP-表面活性剂，被称为CNC-表面活性剂，迅速形成在液体/液体界面，组装成单层，并在堵塞时，提供了一个强大的组件具有特殊的机械性能。包含CNC的水性介质自由下落喷射到胺末端官能化的聚苯乙烯的甲苯溶液中的高原-瑞利（PR）不稳定性被完全抑制，从而允许当CNC-表面活性剂堵塞在界面处时稳定的水性小管的喷射。这些结果为全液体结构的增材制造技术（例如三维（3D）打印）打开了新平台。
Structured liquids, generated by the interfacial formation, assembly, and jamming of nanoparticle (NP)-surfactants at liquid/liquid interfaces, maintain all the desirable characteristics of each liquid, while providing a spatially structured framework. Herein, we show that rod-like cellulose nanocrystal (CNC)-based NP-surfactants, termed CNC-surfactants, are formed rapidly at the liquid/liquid interface, assemble into a monolayer, and, when jammed, offer a robust assembly with exceptional mechanical properties. Plateau-Rayleigh (PR) instabilities of a free-falling jet of an aqueous medium containing the CNCs into a toluene solution of amine end-functionalized polystyrene are completely suppressed, allowing the jetting of aqueous tubules that are stabilized when the CNC-surfactants are jammed at the interface. These results open a new platform for the additive manufacturing techniques, for example, three-dimensional (3D) printing, of all-liquid constructs.