报告一

题目：In-situ polymerized liquid crystal networks: 25 years research on their formation, properties and applications

报告人：D.J. Broer

Eindhoven University of Technology, The Netherlands, email: d.broer@tue.nl

报告内容摘要：

Anisotropic polymer networks have found applications in optics, electronics and mechanics. A preferred way of making them is by photopolymerization of monolithically aligned liquid crystal monomers. The lecture will provide a short historic overview on their development in a framework of properties and applications. Special attention in the lecture will be paid to the structure-property relationships of the monomers and the networks that they form; still being relevant for applications that are currently under development. In addition the lecture will discuss early applications as optical fiber coatings, polarizing beamsplitters, color filters, optical retarders, transflective retarders, reflective polarizers and viewing angle improving films for LCDs.

报告人简介:

Dirk Jan Broer教授， 世界著名高分子化学家，荷兰皇家科学院院士、埃因霍温技术大学教授、功能有机材料与器件系主任。广东省超液晶智能材料创新科研团队带头人；具有40余年液 晶高分子及显示技术研发及产业化经验，是平板显示液晶材料领域的奠基人和领跑者；现任世界最大液晶材料公司Merck资深技术顾问，曾任飞利浦研究院液晶 高分子材料研发负责人、高级院士、高级副总裁。截至目前，Broer教授有120项美国授权专利，219篇国际期刊SCI论文，总引用超过4369次，6 篇《nature》系列刊物论文，H-index大于32。

 

 

报告二

题目：Morphing dynamics in ordered polymer networks

报告人：Danqing Liu

Eindhoven University of Technology, The Netherlands, email: d.liu1@tue.nl

报告内容摘要：

Polymers that can change shape or can change their surface topography in response to a trigger have a wide application potential varying from micro-robotics to avionics. Preferably this morphing proceeds fast and reversibly. We developed new morphing principles based on in-situ photopolymerized liquid crystal networks. Commonly the triggers are temperature, light, pH or the presence of chemicals or other moisture. In the lecture we will focus on UV actuation and demonstrate that by accurate positioning of molecules in the space of a thin film or coating the deformation figures can be predetermined and can be made very complex. In a special case the surface topography can be altered by light such that either regular surface structures are being such as line grating or irregular structures such as fingerprints. The surface topographies are dynamic and disappear as soon as the light is switch off. An interesting feature is that the surface tribology can be altered be UV exposure.

Reference:

1.       D. Liu, D.J. Broer, “Self-assembled Dynamic 3D Fingerprints in Liquid Crystal Coatings Towards Controllable Friction and Adhesion” Angew. Chem. (Int Ed) 53, early view (2014)

2.       D. Liu, Danqing,  C.W.M.Bastiaansen, J.M.J. den Toonder, DJ. Broer, “Light-Induced Formation of Dynamic and Permanent Surface Topologies in Chiral-Nematic Polymer Networks” Macromolecules 45, 8005-8012 (2012)

3.       D. Liu, Danqing, C.W.M.Bastiaansen, J.M.J. den Toonder, D.J. Broer, “Photo-Switchable Surface Topologies in Chiral Nematic Coatings” Angew. Chem. (Int Ed) 51, 892-896 (2012)

报告人简介:

刘丹青博士， 毕业于埃因霍温技术大学，荷兰高分子材料研究院研究员，主要从事液晶高分子材料研究，尤其是在液晶及液晶聚合物的光-机械响应领域，拥有大量的研究经验， 在水凝胶领域同样拥有丰厚的技术积累，是液晶聚合物材料与器件研发领域的青年科学家，是华南师范大学华南先进光电子研究院访问学者、广东省超液晶智能材料 创新科研团队核心成员。

 

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