A novel supramolecular polymer network based on a catenane-type crosslinker

Abstract

A novel supramolecular mechanically interlocked crosslinker was designed and used to prepare a supramolecular polymer network.

Functional Supramolecular Polymeric Networks: The Marriage of Covalent Polymers and Macrocycle-Based Host–Guest Interactions

“…These now-canonical structures are characterized by degrees of freedom that are restrained in at least one dimension; however, they still permit effective translation or rotation depending on the system in question. − The incorporation of mechanically interlocked structures into bulk materials thus offers the potential of transforming specific molecular motions into macroscopic scale changes. This property, in turn, can lead to materials with special dynamic properties or unique mechanical features. − Xing and co-workers reported a SPN that takes advantage of interactions between a catenane-based B21C7 cross-linker 1 and a DAAS-grafted polymer 2 . As shown in Figure , the two B21C7 host units were linked by the [2]­catenane moiety to generate cross-linker 1 .…”

Effect of metallosupramolecular polymer concentration on the synthesis of poly[n]catenanes

“…[7][8][9][10] These new polymeric materials exhibit unusual property proles, 11 that include increased stress dissipation and high extensibility. [12][13][14] One of the more intriguing MIP architectures is the poly[n]catenane-a polymer chain that is entirely comprised of interlocked macrocycles where the number of mechanical bonds is optimized (Fig. 1).…”

Engineering membranes with macrocycles for precise molecular separations

“…2b. 60 Fig. 2 (a) Illustration of the advantage of the host-guest interaction for double supramolecular cross-linked polymer gels.…”

“…58 (b) Cartoon representations and chemical structures of supramolecular mechanically interlocked crosslinker 1, polymer 2, and supramolecular polymer network SPN 1. 60 Reproduced with permission from Royal Society of Chemistry, Copyright 2015 and Copyright 2018.…”