AI Article Synopsis
- The study developed coordination polymers using C symmetric azopyridine ligands and Ag(i), resulting in two types: a trans polymer that forms an organogel and a cis polymer that creates nanoparticles.
- The trans coordination polymer demonstrates unique properties, including self-healing and responsiveness to various stimuli like heat, light, and chemicals, thanks to dynamic coordinating bonds.
- The cis polymer, through azo group isomerization, leads to fibrous precipitation upon visible light exposure, showcasing potential for designing responsive materials based on coordination polymer transformations.
Article Abstract
In this work, through the coordination of C symmetric azopyridine ligands and Ag(i), coordination polymers with azo groups on the main chain were prepared. The trans coordination polymer formed an organogel with a network of nanofibers at low critical gelation concentrations, and it exhibited the abilities of self-healing and multi-stimuli response to heating, light, mechanical shearing, and chemicals due to the presence of dynamic coordinating bonds. On the other hand, the cis coordination polymer was found to assemble into nanoparticles to give a responsive colloid, which can produce fibrous precipitation in several days upon visible light irradiation due to the isomerization of the azo groups. This work provides a novel example for the design of a multi-responsive organogel and colloid based on the structural transformation of coordination polymers.
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| http://dx.doi.org/10.1039/d1sm00013f | DOI Listing |
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