A5020999857- Supramolecular Self-Assembly in Materials
- Polydiacetylene-based materials and applications
- Supramolecular Chemistry and Complexes
- Covalent Organic Framework Applications
- Chemical Synthesis and Analysis
- Luminescence and Fluorescent Materials
- Characterization and Applications of Magnetic Nanoparticles
- Minerals Flotation and Separation Techniques
- Diatoms and Algae Research
- Surface Chemistry and Catalysis
- Porphyrin and Phthalocyanine Chemistry
- Photochromic and Fluorescence Chemistry
- Metal-Organic Frameworks: Synthesis and Applications
- Geomagnetism and Paleomagnetism Studies
- Synthesis and Properties of Aromatic Compounds
Chiba University
2019-2024
Yokohama City University
1996
Helical folding of randomly coiled linear polymers is an essential organization process not only for biological polypeptides but also synthetic functional polymers. Realization this dynamic in supramolecular (SPs) is, however, a formidable challenge because their inherent lability main chains upon changing external environment that can drive the (e.g., solvent, concentration, and temperature). We herein report photoinduced reversible folding/unfolding rosette-based SPs driven by...
Polymorphism, a phenomenon whereby disparate self-assembled products can be formed from identical molecules, has incited interest in the field of supramolecular polymers. Conventionally, monomers that constitute polymers are engineered to facilitate one-dimensional aggregation and, consequently, their polymorphism surfaces primarily when states assembly differ significantly. This engenders polymorphs divergent dimensionalities such as one- and two-dimensional aggregates. Notwithstanding,...
Abstract Supramolecular polymers have emerged in the last decade as highly accessible polymeric nanomaterials. An important step toward finely designed nanomaterials with versatile functions, such those of natural proteins, is intricate topological control over their main chains. Herein, we report facile one-shot preparation supramolecular copolymers involving segregated secondary structures. By cooling non-polar solutions containing two monomers that individually afford helically folded and...
Insolubility of functional molecules caused by polymorphism sometimes poses limitations for their solution-based processing. Such a situation can also occur in the preparation processes supramolecular polymers formed solution. An effective strategy to address this issue is prepare amorphous solid states introducing "coformer" molecule capable inhibiting formation an insoluble polymorph through co-aggregation. Herein, inspired coformer approach, we demonstrated solubility enhancement...
Beyond phenomenon, self-assembly of synthetic molecules, is now becoming an essential tool to design supramolecular materials not only in the thermodynamically stable state but also kinetically trapped states. However, approach complex processes comprising different types self-assembled states remains elusive. Herein, example such systems demonstrated based on a unique polymer mediated by supermacrocyclization hydrogen-bonding π-conjugated molecules. By adding aromatic solvent into nonpolar...
An ester-containing a barbiturated π-conjugated molecule exhibits kinetic supramolecular polymorph with outstanding morphological and fluorescent changes. Metastable polymers ...
Abstract Supramolecular polymerization of two regioisomeric naphthalene‐azobenzene dyads bearing barbituric acid and tri(dodecyloxy)phenyl units were studied in nonpolar solvent. polymers the compounds differ considerably their topologies. While isomer which azobenzene unit was introduced along to its longer molecular axis formed randomly coiled supramolecular with intrinsic curvature, other shorter linearly extended polymers. Furthermore, due different degrees geometrical changes...
Abstract Insolubility of functional molecules caused by polymorphism sometimes poses limitations for their solution‐based processing. Such a situation can also occur in the preparation processes supramolecular polymers formed solution. An effective strategy to address this issue is prepare amorphous solid states introducing “coformer” molecule capable inhibiting formation an insoluble polymorph through co‐aggregation. Herein, inspired coformer approach, we demonstrated solubility enhancement...