Adaptisorption of Nonporous Polymer Crystals

• Published in: Angewandte Chemie 2024-03, Vol.136 (13), p.n/a
• Main Authors: Shan, Tianyu, Chen, Liya, Xiao, Ding, Xiao, Xuedong, Wang, Jiao, Chen, Xuan, Guo, Qing‐Hui, Li, Guangfeng, Stoddart, J. Fraser, Huang, Feihe
• Format: Article
• Language: English
• Subjects: Adsorption; Components; Crystals; nonporous; Polymers; polyrotaxane; Recrystallization; single-crystal to single-crystal transformation; Sorbents
• ISSN: 0044-8249; 1521-3757
• DOI: 10.1002/ange.202317947

Although our knowledge and understanding of adsorptions in natural and artificial systems has increased dramatically during the past century, adsorption associated with nonporous polymers remains something of a mystery, hampering applications. Here we demonstrate a model system for adaptisorption of nonporous polymers, wherein dative B−N bonds and host‐guest binding units act as the kinetic and thermodynamic components, respectively. The coupling of these two components enables nonporous polymer crystals to adsorb molecules from solution and undergo recrystallization as thermodynamically favored crystals. Adaptisorption of nonporous polymer crystals not only extends the types of adsorption in which the sorbate molecules are integrated in a precise and orderly manner in the sorbent systems, but also provides a facile and accurate approach to the construction of polymeric materials with precise architectures and integrated functions. Adaptisortion tailored for nonporous polymers has been achieved by dative boron‐nitrogen bonding and host‐guest binding. The coupling of these two components enables nonporous polymeric crystals to adsorb molecules from solution and undergo recrystallization as thermodynamically favored crystals.