【校庆系列讲座】离子凝胶

发布日期:2021-04-23     浏览次数:次   

校庆化学系列前沿讲座系列之七


离子凝胶


报告时间:2021-04-27 15:30

报 告 人:武培怡 教授,东华大学

报告地点:卢嘉锡楼202报告厅


摘要:

   The marine animals, such as leptocephalus and jellyfish, can sense external stimuli and achieve optical camouflage in the aquatic environment. Fabricating an intelligent soft sensor, which can mimic the capabilities of transparent marine animals and function underwater, could enable transformative applications in various novel fields. However, previously reported soft sensors struggle to meet the requirements of adhesion, self-healing ability, optical transparency and stable conductivity in the aquatic environment. Herein, high-performance ionogels by virtue of ion-dipole and ion-ion interactions between fluorine-rich poly(ionic liquid) and ionic liquid are designed. The hydrophobic dynamic viscoelastic networks provide excellent properties for ionogels, including optical transparency, adjustable mechanical property, underwater self-healing ability, underwater adhesiveness, conductivity and 3D printability. A mechanically compliant and visually invisible underwater soft sensor based on ionogel has been developed. This sensor can achieve optical camouflage, human body motion detection and barrier-free communication in the aquatic environment. A novel contactless sensing mechanism based on changing the electron transfer pathway is proposed. Several interesting functions, such as detection of water environment changes, recognition of objects, delivery of information and even identification of human standing posture can be realized. Importantly, the ionogel sensor could avoid fatigue and physical damage in the sensing process.


报告人简介:

    武培怡,教授,博士生导师。现任东华大学化学化工与生物工程学院院长。国家杰出青年基金获得者(2004),英国皇家化学会会员。 1985-1988年,获南京大学理学学士、硕士学位;1998年,获德国ESSEN大学自然科学博士学位;1998-2000年,日本触媒研究中心从事研究工作 2000年至今,复旦大学高分子科学系教授;2017年起,东华大学化学化工与生物工程学院教授、院长。主要研究领域为二维相关光谱在聚合物体系中的应用;仿生材料;聚合物功能膜。


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