Construction and Application of Three-dimensional Organic Frameworks Utilizing Complementary Salt Bridges

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We synthesized a number of double helices consisting of amidine polymers and complementary carboxylic acid polymers, in which various functional groups were incorporated, and we disclosed the thermodynamic and kinetic properties of the double helix formation. We also synthesized supramolecular polymer gels from a telechelic polybutadiene having two carboxyl groups at both ends and a main chain-type polyamidine, and found that the gels had better mechanical properties than the component polymers themselves, Interestingly, their rheological properties changed in response to external stimuli such as temperature change. Moreover, we found that a homogeneous binary mixture consisting of the polyamidine and PEG absorbed CO₂ gas efficiently.