In this work, two TPE-bridged monomers M4 and N4, and a heteroditopic monomer AE were designed and synthesized. They could self-assemble by self-sorting mode to form supramolecular cross-linked alternating polymer. The process of supramolecular polymerization induced fluorescence emission enhancement on the basis of an AIE mechanism. Furthermore, the "off-on" switchable fluorescence emission could be achieved by adding-removing potassium ion from the solution of supramolecular polymer or heating−cooling method. At relatively high concentration, the supramolecular cross-linked polymer transformed into supramolecular gel and the obtained gel showed excellent self-healing capability and thermal reversibility.

Supramolecular polymer gels (SPGs) are precisely designed gels brought together by noncovalent interactions to form three-dimensional network structures of polymers. In general, SPGs are different from supramolecular gels as they...

In this work, three different monomers AB2, C2，and TP4 were synthesized. The AB2+C2 could self-assemble to form supramolecular hyperbranched polymer (SHP1) based on crown ether-based host-guest interaction. Upon adding TP4...

Supramolecular polymers not only possess many advantages of traditional polymers, but also have many unique characteristics. Supramolecular polymers can be constructed by self-assembly of various noncovalent interactions. Host-guest interaction, as one important type of noncovalent interactions, has been widely applied to construct supramolecular polymers. From the perspective of classification of the recognition system motifs, host-guest recognition motifs mainly include crown ether, cyclodextrin, calixarene, cucurbituril, and pillararene-based host-guest recognition pairs. Crown ethers, as the first-generation macrocyclic hosts, have played a very important part in the development of supramolecular chemistry. Due to the easy modification of crown ethers, various crown ether derivatives have been prepared by attaching some functional groups to the edges of crown ethers, which endowed them with some interesting properties and made them ideal candidates for the fabrication of supramolecular polymers. This review gives a review of the preparation of crown ether-based supramolecular polymers (CSPs) and summarizes crown ether-based recognition pairs, organization methods, topological structures, stimuli-responsiveness, and functional characteristics.

New supramolecular polymers were prepared by the combination of orthogonal self-assembly and competitive self-sorting assembly methods.

A sequence-controlled supramolecular copolymer was constructed by self-sorting assembly of metal coordination and two types of host–guest interactions.

In this work, three different monomers A3, B3 and M1 were designed and synthesized, A3+B3+M1+Zn(OTf)2 could self-assemble to form a supramolecular hyperbranched polymer (SHP) based on pillararene-based host–guest recognition and...