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反应性极性介晶自组装方法实现可区域编程的聚合物铁电体

Reactive polar mesogenic self-assembly approach enables domain-programmable polymer ferroelectrics

Fan Ye, Minghui Deng, Yuyang Zheng, Xiujuan Liu, Xiuhu Zhao, Haowei Jiang, Yanyun Hou, Bingyu Zou, Neng-Ang Peng, Shuo Zhao, Kutay Sağdıç, Danqing Liu, Yang Shen, Yan-Qing Lu, Satoshi Aya, Mingjun Huang

arXiv 2608.07942首次发表:更新:

AI 中文总结

本研究提出反应性极性介晶自组装方法,制备不含多氟烷基的柔性铁电液晶聚合物,通过光取向实现可编程极性畴结构,为柔性电子等领域拓展了自适应材料设计空间。

AI 中文摘要

铁电聚合物兼具可切换极化与软材料的加工性,但其发展长期被聚偏氟乙烯(poly(vinylidene fluoride),PVDF)及相关含氟聚合物主导,这类材料的结晶极性相限制了机械顺应性与空间精确的畴设计。本研究确立了一种通用设计原理,通过反应性极性介晶自组装制备本征柔性铁电液晶聚合物。该方法制备了不含多氟烷基的聚合物薄膜,其稳定的铁电序源于液晶分子组装而非结晶相形成。通过将铁电序从流体介晶态转移至聚合物网络,所得材料兼具机械适应性与可编程极性结构;其中光取向技术可将这些极性态组织成分割成像素的畴结构。本工作为整合分子编程极性序、机械可调性与环境友好化学的软铁电聚合物开辟了设计空间,拓展了柔性电子、可穿戴系统与软机器人用自适应材料的设计范畴。

英文摘要

Ferroelectric polymers combine switchable polarization with the processability of soft materials, but their development has been dominated by poly(vinylidene fluoride) and related fluoropolymers, whose crystalline polar phases restrict mechanical compliance and domain design with spatial precision. Here we establish a generic design principle for creating intrinsically flexible ferroelectric liquid-crystal polymers through reactive polar mesogenic self-assembly. The approach creates polyfluoroalkyl-free polymer films in which robust ferroelectric order arises from liquid-crystalline molecular organization rather than crystalline phase formation. By transferring ferroelectric order from fluid mesogenic states into polymer networks, the resulting materials combine mechanical adaptability with programmable polar architectures. Especially, the photoalignment technology enables these polar states to be organized into pixelated domain architectures. This work establishes a design space towards soft ferroelectric polymers that integrate molecularly programmed polar order, mechanical tunability and environmentally conscious chemistry, expanding the design space of adaptive materials for flexible electronics, wearable systems and soft robotics.

论文原文

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