主讲人简介：

张凯是德国哥廷根大学的教授，哥廷根大学木材研究中心主任。主要研究方向包括氢键作用 、纤维素材料成型及其复合材料，担任“Hydrogels”杂志副主编，“Scientific Reports”、 “Journal of Semiconductors”等杂志的编委。他获得了2015年GCCCD优秀博士导师奖和 2016年欧洲十大中国科技领先人才之一。张凯教授的研究重点是生物聚合物、天然纳米结构 和可持续生物材料中的功能材料的化学。他在各种顶级期刊上发表了50多篇论文，包括 “Advanced Materials”、“Angewandte Chemie Int Ed”、“Advanced Functional Materials”、 “Journal of Materials Chemistry A”等杂志。

报告摘要:

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.