主講人簡介：

張凱是德國哥廷根大學的教授，哥廷根大學木材研究中心主任。主要研究方向包括氫鍵作用 、纖維素材料成型及其複合材料，擔任“Hydrogels”雜志副主編，“Scientific Reports”、 “Journal of Semiconductors”等雜志的編委。他獲得了2015年GCCCD優秀博士導師獎和 2016年歐洲十大中國科技領先人才之一。張凱教授的研究重點是生物聚合物、天然納米結構 和可持續生物材料中的功能材料的化學。他在各種頂級期刊上發表了50多篇論文，包括 “Advanced Materials”、“Angewandte Chemie Int Ed”、“Advanced Functional Materials”、 “Journal of Materials Chemistry A”等雜志。

報告摘要:

Hydrogels have great potential for diverse applications, ranging from commodity products to high-performance healthcare materials. Herein, a dynamic hydrogels with heterogeneous structures containing supermolecular nanocellulose or LDH nanosheets as novel group of hydrogels will be presented. In the presence of anisotropic nanocellulose, dynamic hydrogels can be used as platform for a variety of multidimensional materials with tunable microstructures and functionalities. Via uniaxial stretching and air-drying under controlled conditions, the microstructures can be controlled via the hydrodynamic alignment and surface-tension-induced confinement. Depending on the geometry of starting hydrogels, 1D, 2D and 3D materials with distinctly birefringent properties can be fabricated. In the presence of LDH nanosheets, dynamic hydrogels show thermoresponsive water transportation.