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Yoshie Lab
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The lab creates materials with new functions by controlling the structure and dynamics of polymers.
AboutAbout the lab
New functions of polymer materials, enabled by dynamic structural control.
The Yoshie Lab studies the structure and dynamics of polymers and how to control them in order to give materials new functions.
Polymers move far more slowly than small molecules, and the multilevel structures that arise from this slow motion are the source of their wide range of properties.
The lab has developed polymers that heal damage with water or mild heating, as well as materials with uniform network structures.
The lab also places importance on developing technologies that keep plastics in circulation, including materials made from bio-based raw materials, materials that degrade in the ocean, and chemical recycling.
Key terms
- Polymer
- A large molecule made of many small molecules linked together like a chain. It is the basis of plastics and rubber.
- Chemical recycling
- A type of recycling in which used plastics are broken down by chemical reactions into raw materials and then reused.
NewsLab news
Students received awards including the Outstanding On-Demand Presentation Award at the Annual Meeting of the Society of Polymer Science, Japan
A master's student received the Poster Presentation Award at the Eco-Materials Symposium
A doctoral student received the Outstanding Poster Presentation Award at ISF2024
A doctoral student received the Best Poster Presentation Award at GelSympo2024
A doctoral student received the Judges' Award at the Symposium on Polymer Analysis
ResearchResearch themes
The lab explores new material functions by understanding the complex coordination between polymer structure and motion and controlling it dynamically. Developing materials that keep plastics in circulation, such as bio-based materials, marine-degradable materials, and chemical recycling, is also an important theme.
*Illustrative imageSelf-healing polymers
The lab has developed polymers that heal damage with everyday stimuli such as water or mild heating. Recently, it found that diol groups, in which two -OH groups sit next to each other, are effective for making tough, self-healing rubber.
*Illustrative imageMaterials with uniform network structures
Rubbers and gels consist of networks formed by linking polymer chains, but non-uniformity in the network has degraded their properties. The lab developed a method to build networks with a uniform structure using highly branched polymers.
MembersFaculty
The members of the Yoshie Lab consist of faculty, project researchers, administrative assistants, technical assistants, doctoral and master's students, and research students.As of 2026
- ProfessorNaoko YoshiePublications ↗
- Project Assistant ProfessorDian Zhang
- Assistant ProfessorRyuji Kiyama
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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: “Sbs block copolymer” Peter R Lewis / Public domain (cropped)
- Self-healing polymers: “Miladmohammad” Milad r1996 / CC BY-SA 4.0 (cropped)
- Materials with uniform network structures: “Mytilus with byssus” Brocken Inaglory / CC BY-SA 3.0 (cropped)
- Related lab (Kudo Lab): “Equipment and glassware” Belikov Maxim / CC BY 4.0 (cropped)
- Related lab (Fluorine Organic Chemistry Lab (Kawaguchi Lab)): “9104 - Milano - Museo storia naturale - Fluorite - Foto Giovanni Dall'Orto 22-Apr-2007” Giovanni Dall'Orto / CC BY-SA 2.5 it (cropped)
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