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School Research Seminar - Professor Takuza Aida - University of Tokyo

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"Supramolecular Polymerization: Its Significance and Applications"

Professor Takuzo Aida
Date(s)
February 10, 2021
Location
School of Chemistry and Chemical Engineering - ONLINE seminar
Time
10:00 - 11:00

 

About a century ago, Dr. Hermann Staudinger substantiated the existence of ultralong molecules and won the longterm debate against the colloidal theory to establish polymer science. Needless to say, polymer science has made tremendous contributions to the progress of human society, although it coincidentally brought about a critical environmental issue to tackle.

 

A reaction mechanism

 

In his talk, Professor Aida will present the significance and applications of supramolecular polymerization, a modernized version of the colloidal approach to polymeric materials. Supramolecular polymers attract attention not only because they are 100% recyclable but also they can be designed to be environmentally friendly, self-healable, responsive, and/or adaptive [1–4]. In 1988, Prof. Aida and his team reported the first prototype of supramolecular polymerization, featuring the formation of a 1D polymeric assembly using an amphiphilic porphyrin with water-soluble oligoether side chains as the monomer and have made fundamental contributions to this field. Representative examples include (1) nanotubular upramolecular polymerization, (2) chain-growth supramolecular polymerization, (3) supramolecular block copolymerization, (4) stereoselective supramolecular polymerization, and (5) thermally bisignate supramolecular polymerization. These contributions are integral elements of conventional polymer science, filling in the critical gap between supramolecular and conventional polymerizations. Furthermore, Prof. Aida's team have expanded the basic concept of supramolecular polymerization into the noncovalent design of innovative soft materials. Successful examples include the developments of (i) bucky gels, (ii) aquamaterials, (iii) mechanically robust self-healable materials, (iv) supramolecular polymers of biomolecular machines, (v) ferroelectric columnar liquid crystals, and (vi) reorganizable and adaptive core-shell columnar liquid crystals. Prof. Aida will highlight some of these examples to show the significance of supramolecular polymerization for the realization of sustainable society.

 

REFERENCES

[1] Aida, Meijer, Stupp, Science 2012, 335, 813–817.

[2] Aida, Meijer, Israel J. Chem. 2020, 60, 33–47.

[3] Aida, Adv. Matter. Essay, 2020, 1908140.

[4] Hashim, Bergueiro, Meijer, Aida, Prog. Polym. Sci. 2020, 101250.

 

 

 

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