Bai Jing, Shi Zixing
School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composite Materials, and Shanghai Key Lab of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dungchuan Road, Minhang, Shanghai, People's Republic of China.
ACS Macro Lett. 2017 Sep 19;6(9):1025-1030. doi: 10.1021/acsmacrolett.7b00403. Epub 2017 Sep 6.
Shape memory behavior was applied here as a new approach for developing the latent photopatterned morphologies in two/three dimension (2D/3D) on the modified poly(styrene--butadiene--styrene) (SBS). By attaching anthracene groups onto the SBS chains, the elastomer frozen in the deformed state was photopatterned via the photodimerization of anthracene. Upon thermal treatment, shape memory process could effectively develop the latent photopatterning induced 2D-2D and 2D-3D shape transformation. Due to the reversible dimerization of anthracene, the photoinduced patterns and the shape conformation could be erased and redeveloped for multiple times.
形状记忆行为在此被用作一种新方法，用于在改性聚（苯乙烯 - 丁二烯 - 苯乙烯）（SBS）上二维/三维（2D/3D）开发潜在的光图案化形态。通过将蒽基团连接到SBS链上，处于变形状态的弹性体通过蒽的光二聚作用进行光图案化。经过热处理，形状记忆过程可以有效地实现潜在光图案化诱导的二维 - 二维和二维 - 三维形状转变。由于蒽的可逆二聚作用，光诱导图案和形状构象可以被擦除并多次重新形成。
