Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, 37 Xueyuan Rd, Beijing, 100191, P. R. China.
National Center for Nanoscience and Technology, Beijing, 100190, P. R. China.
Angew Chem Int Ed Engl. 2017 Oct 16;56(43):13464-13469. doi: 10.1002/anie.201707239. Epub 2017 Sep 18.
A fabrication strategy for biphasic gels is reported, which incorporates high-internal-phase emulsions. Closely packed micro-inclusions within the elastic hydrogel matrix greatly improve the mechanical properties of the materials. The materials exhibit excellent switchable mechanics and shape-memory performance because of the switchable micro- inclusions that are incorporated into the hydrogel matrix. The produced materials demonstrated a self-healing capacity that originates from the noncovalent effect of the biphasic heteronetwork. The aforementioned characteristics suggest that the biphasic gels may serve as ideal composite gel materials with validity in a variety of applications, such as soft actuators, flexible devices, and biological materials.
本文报道了一种双相凝胶的制备策略，该策略结合了高内相乳液。弹性水凝胶基质中紧密堆积的微夹杂极大地提高了材料的力学性能。由于可切换微夹杂被掺入水凝胶基质中，这些材料表现出优异的可切换力学性能和形状记忆性能。所制备的材料表现出自愈能力，这源于双相杂化网络的非共价效应。上述特性表明，双相凝胶可用作理想的复合凝胶材料，在软致动器、柔性器件和生物材料等多种应用中具有有效性。
