Chinese invention patent: Hydrogen bond-containing linear azobenzene polymer as well as preparation method and application thereof

Inventor: Chongyu Zhu, Yanlei Yu, Jiahao Sun

Applicant: Fudan University

Patent No.: ZL 202010686469.0

Abstract：

The invention belongs to the technical field of polymer materials and relates to a hydrogen bond-containing linear azobenzene polymer as well as a preparation method and application thereof. The molecular chain of the polymer is of a linear structure, azobenzene elements are located on a main chain of the polymer, and hydrogen bonds provided by urethane bonds exist between the molecular chains forphysical crosslinking. Compared with the prior art, the hydrogen bond-containing linear azobenzene polymer provided by the invention is simple in synthesis steps, can be processed by a melting and solution method, is not limited in molding size and shape, and can be recycled after being processed and molded. After processing and molding, through pre-editing or non-editing, the shape of the polymer can be changed under the illumination of a specific wavelength. In addition, the polymer can greatly regulate and control the mechanical and photoresponse deformability of the polymer by regulating and controlling spacer groups on two sides of azobenzene and the structure of diisocyanate.