蒽的可逆光诱导[44]环加成反应可实现多个二聚和分裂循环,允许分子片段的光可调谐连接,用于合成聚合物支架。从水凝胶到形状记忆聚合物的新型功能材料是由蒽基聚合物系统设计的,因为它们具有多种光化学反应性和响应性。作为外部刺激的光允许在不需要额外试剂的情况下对材料进行远程和精确的时空控制。根据光反应性蒽部分的引入方式,蒽基聚合物体系与光的相互作用导致各种过程,如聚合,环化,和交联。蒽衍生物的结构修饰可以将其吸收从紫外区转移到可见光区,扩大其应用范围,包括生物学相关研究。通过使用光和热作为刺激的二聚化反应的可逆性,这些应用进一步多样化和增强。在这次审查中,讨论了含蒽聚合物的合成和光二聚的当前发展及其在新材料制造中的新兴应用。
The reversible photo-induced [4+4] cycloaddition reaction of anthracene enables multiple cycles of dimerization and scission, allowing phototunable linkage of molecular fragments for the synthesis of polymer scaffolds. New functional materials ranging from hydrogels to shape-memory polymers were designed from anthryl-polymer systems because of their diverse photochemical reactivity and responsiveness. Light as an external stimulus allows for the remote and precise spatiotemporal control of materials without the need for additional reagents. Depending on how the photoreactive anthracene moieties were introduced, the interaction of anthryl-polymer systems with light results in various processes such as polymerization, cyclization, and cross-linking. Structural modifications of anthracene derivatives could shift their absorption from the ultraviolet to the visible light region, widening their range of applications including biologically relevant studies. These applications are further diversified and enhanced by the reversibility of the dimerization reaction using light and heat as stimuli. In this review, current developments in the synthesis and photodimerization of anthracene-containing polymers and their emerging applications in the fabrication of new materials are discussed.