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Polymer Reaction Chemistry Lab
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The lab develops new polymers by making use of the properties of metals.

AboutAbout the lab
Harnessing the properties of metal elements to make polymers
The Polymer Reaction Chemistry Lab studies the development of synthetic methods for polymers that make use of the properties of metal elements, and the creation of functional polymers.
By precisely designing new transition metal complexes at the molecular level and investigating their reactivity, the lab develops new polymerization catalysts.
Based on synthetic organic chemistry, the lab achieves a high degree of control over polymer structure and also explores functionalization that takes advantage of that structure.
On the lab's website, it is introduced under the name 'Onitsuka Lab.'
Key terms
- Transition metal complex
- A compound in which molecules (ligands) are bound around a metal atom
- Polymerization catalyst
- A substance that drives the reaction (polymerization) that links small molecules together into polymers
- Metalloenzyme
- A protein that contains a metal and drives reactions in living organisms
NewsLab news
Joint research on end-functionalization of polythiophene published in Macromolecules
Joint research on polymer backbone transformation published in Chem. Lett.
Joint research on branched π-stacked polymers published in Macromolecules
Assistant Professor Naoya Kanbayashi received the Osaka University Award (Young Faculty Category) for FY2024
Research on π-stacked polymers accepted in Polym. Chem.
ResearchResearch themes
This lab conducts broad research on developing synthetic methods for polymers that make use of the properties of metal elements, and on creating functional polymers. The lab also focuses on metalloenzymes, a representative example of natural, highly functional macromolecular complexes, and works to elucidate how they function.
View More ↗MembersFaculty
The members of the Onitsuka Lab are faculty, a Visiting Associate Professor, master's and undergraduate students, and a secretary.As of 2026
- ProfessorKiyotaka Onitsuka
- Associate ProfessorTaka-aki Okamura
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: “Polypropylene Pellets - DPLA - f7c2fa29d14525ce21219452f4a1a316” Quantum Chemical Corporation / CC BY 4.0 (cropped)
- Synthesis and functionalization of polymers using metals: “Uncolored plastic granules” Rohini / CC BY-SA 3.0 (cropped)
- Related lab (Yamaguchi Lab): “Protein Crystal Malic Enzyme” 作者不詳 / Public domain (cropped)
- Related lab (Organic and Biological Chemistry Lab): “Structural model of SARS-CoV-2 infection - Oo 422117” Victor Padilla-Sanchez / CC BY 4.0 (cropped)
- Related lab (Radiochemistry Lab): “Periodic Table Chart with reactive nonmetals” Sandbh / CC BY-SA 4.0 (cropped)
- Related lab (Natural Products Organic Chemistry Lab): “Gram negative cell wall-id” Gram_negative_cell_wall.svg: Jeff Dahl derivative work: 24Adrianus (talk) / CC BY-SA 3.0 (cropped)
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