Dynamic covalent bond based on reversible photo [4 + 4] cycloaddition of anthracene for construction of double-dynamic polymers.
Dynamic covalent bonds supplied by reversible anthracene dimerization were combined with pillar[5]arene/imidazole host-guest interactions to construct double-dynamic polymers. Heating such polymers (in solution or as a gel) led to depolymerization by dissociation of either the host-guest complexes alone or the complexes and the anthracene dimers, depending on the extent of heating. The polymers reformed readily upon cooling or irradiation.
Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China, and University of the Chinese Academy of Sciences , Beijing 100049, P. R. China.
Jiang-Fei
JF
Xu
Yu-Zhe
YZ
Chen
Li-Zhu
LZ
Wu
Chen-Ho
CH
Tung
Qing-Zheng
QZ
Yang
D000873:Anthracenes / Q000737:chemistry*; D003500:Cyclization; D019281:Dimerization; D015394:Molecular Structure; D055668:Photochemical Processes; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry; D013816:Thermodynamics
D000873:Anthracenes; D011108:Polymers; C034020:anthracene