摘要：

Crosslinked liquid crystal polymers (CLCPs) are a new type of material that has properties of both liquid crystals and elastomers arising from polymer networks. The remarkable properties of liquid crystal phases stem from their combination of long-range order of crystals with mobility of ?uids, such as birefringence, ?uidity, and alignment change by external ?elds. Among these properties, the most interesting one is the ability to change their shape reversibly after the application of a certain external stimulus. Photodeformation of the CLCPs is mainly triggered by UV light due to the reversible trans–cis photoisomerization of azobenzene groups incorporated into the polymer networks. Furthermore, numerous light-driven bioinspired soft actuators such as swimmer, motors, oscillators, microrobots, artificial cilia, inchworm and robotic arm have already been fabricated from azo-CLCPs. Recently, we synthesized novel azobenzene-containing side-chain liquid crystal polymers (LCPs) without any crosslinking via ring opening metathesis polymerization and succeeded in inducing the anisotropic bending of the prepared LCP fibers and films in response to light. This novel kind of the LCPs without chemical crosslinking are benefit for the fabrication of micro and even nano soft actuators through micromachining technologies.

关键词：liquid crystal polymers, photodeformation, actuators

 

___________________________________

 

个人简介：

　　复旦大学材料科学系教授，博士生导师，国家杰出青年科学基金获得者。1993年毕业于安徽大学化学系，1996年获中国科技大学材料科学与工程系硕士学位，同年进入复旦大学材料科学系工作。2004年获得日本东京工业大学博士学位，受聘为复旦大学材料科学系教授、博导。先后获得教育部首届“新世纪优秀人才”（2004年）、上海市“曙光学者”（2005年）、上海市“青年科技启明星”（2006年）以及国家杰出青年科学基金（2012年）。主要从事液晶高分子和光响应性高分子材料的研究。负责“863”、国家自然科学基金重点项目等国家和省部级项目。在Nature、J. Am. Chem. Soc.、Angew. Chem. Int. Ed.、Adv. Funtc. Mater.等国际学术期刊上发表SCI论文50多篇，被他引1500余次。申请国家发明专利14项，已获10项授权。