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Nakazono Lab
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A lab that uses the soft structures of supramolecules to create new polymer materials.
AboutAbout the lab
New materials from softly connected molecules.
The Nakazono Lab studies functional molecules based on supramolecular chemistry and polymer materials with supramolecular structures.
Supramolecules are molecules or assemblies of molecules that respond to their environment, with structures and properties that change depending on the balance of forces acting between the molecules.
Combining them with various polymer materials is expected to give functions and physical properties that conventional polymers do not have.
Through synthesis and construction, the lab aims to create not only new materials and processes but also new concepts and fields.
Key terms
- Supramolecule
- A structure formed by molecules loosely bound to each other, or an assembly of such molecules
- Rotaxane
- A molecule in which another molecule threads through a ring-shaped molecule, forming a mechanically interlocked structure
- Cyclic polymer
- A polymer with no chain ends, whose chain is connected in a loop
ResearchResearch themes
The lab makes functional molecules and polymer materials by taking advantage of the soft structures of supramolecules. By controlling how molecules are connected, it aims to bring out functions and physical properties that conventional polymers do not have.
*Illustrative imageTopology control of polymers
Cyclic polymers, which have no chain ends, show physical properties different from those of linear polymers with the same molecular weight. Using the dynamic nature of the bonds in rotaxanes, the lab is developing a new synthetic method that converts linear polymers into cyclic ones.
*Illustrative imageDevelopment of rotaxane-crosslinked polymers
It has become clear that using mechanical bonds to crosslink polymers gives them both flexibility and toughness. The lab has developed rotaxane crosslinkers that introduce this bond as a crosslink, and applies them to a variety of commodity polymers.
MembersFaculty
The Nakazono Lab consists of faculty members, technical support staff, and doctoral and master's students.As of 2026
- Associate ProfessorKazuko NakazonoPublications ↗
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “B-cyclodextrin” Materialscientist / CC BY-SA 4.0 (cropped)
- Topology control of polymers: “Cycloparaphenylene-3D-balls” Jynto (talk) / CC0 (cropped)
- Development of rotaxane-crosslinked polymers: “Superabsorber Hydrogel KSG 2917 pK” Petra Klawikowski / CC BY-SA 3.0 (cropped)
- Related lab (福島・庄子研究室): “Emerging geometry in life building blocks” FedeCaimi / CC BY 4.0 (cropped)
- Related lab (伊藤研究室): “Diamond by Peter Smyth” Peter Smyth / CC0 (cropped)
- Related lab (大友研究室): “Multicrystalline silicon wafer with thin film iridescence” Radiotrefoil / CC BY-SA 4.0 (cropped)
- Related lab (稲木研究室): “Portrait of Polycyanoborani” Tavo Romann / CC BY 4.0 (cropped)
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