Hoekstra Davey C, Debije Michael G, Schenning Albert P H J
Laboratory of Stimuli-responsive Functional Materials and Devices, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Groene Loper 3, 5612 AE Eindhoven, The Netherlands.
Institute for Complex Molecular Systems, Eindhoven University of Technology, Groene Loper 3, 5612 AE Eindhoven, The Netherlands.
Macromolecules. 2021 Jun 22;54(12):5410-5416. doi: 10.1021/acs.macromol.1c00611. Epub 2021 Jun 9.
In this work, the formation of triple-shape-memory liquid crystalline-interpenetrating polymer network (LC-IPN) actuators based on a hybrid acrylate-oxetane LC mixture is reported. Orthogonal polymerization of the oxetane and acrylate liquid crystals creates polymer films with two distinct glass-transition temperatures. The use of these two transitions for one-way triple-shape-memory actuation and two-way bending actuation with a broad temperature window for actuation is demonstrated. Our results combine shape memory polymers with liquid crystal-based soft actuators having advanced stimuli-responsive properties.
在这项工作中，报道了基于丙烯酸酯-氧杂环丁烷液晶混合物的三形状记忆液晶互穿聚合物网络（LC-IPN）致动器的形成。氧杂环丁烷和丙烯酸酯液晶的正交聚合产生了具有两个不同玻璃化转变温度的聚合物薄膜。展示了利用这两个转变进行单向三形状记忆致动以及在宽温度窗口下进行双向弯曲致动。我们的结果将形状记忆聚合物与具有先进刺激响应特性的基于液晶的软致动器相结合。
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