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Hayakawa Lab
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A lab that creates materials with freely controlled nanostructures through precision polymer synthesis.
AboutAbout the lab
Tailor-made materials designed from the molecule up
The Hayakawa Lab develops functional materials based on techniques for precisely synthesizing polymers.
Using weak intermolecular forces such as hydrogen bonds, coordination bonds, and van der Waals forces, the lab controls molecular arrangement, as well as crystal, liquid crystal, and phase-separated structures, at the nanoscale.
The lab handles the whole process, from molecular structure design through precision polymerization to control of higher-order structures, and creates one-of-a-kind tailor-made materials.
Its work is applied to semiconductor nanolithography, high thermal conductivity epoxy resins, porous materials, and more.
Key terms
- Block copolymer
- A polymer made of structurally different polymer chains joined end to end
- Microphase separation
- A phenomenon in which block copolymers spontaneously separate into nanoscale patterns
- Lithography
- A processing technique that transfers fine circuit patterns onto a semiconductor substrate
NewsLab news
A doctoral student won a poster award at the ACS Fall Meeting
A student won an oral presentation award and a poster award at the International Conference on Polyimides
A student won the Best Paper Award at the international conference ICPST-43
A student won the On-Demand Award at the Annual Meeting of the Society of Polymer Science, Japan
A master's student won the top award and an excellence award at the master's thesis presentation
ResearchResearch themes
The lab develops functional materials based on polymer synthesis technology. It focuses in particular on ultrafine patterning technology using the self-assembly of block copolymers, and on the development of porous materials.
*Illustrative imageMicrofabrication with block copolymers
Block copolymers phase-separate into spherical, cylindrical, or lamellar nanostructures with a period of about 10 to 50 nanometers, comparable to the length of the molecular chains. The lab uses this self-assembly on semiconductor substrates to create ultrafine, single-digit-nanometer circuit patterns.
*Illustrative imageEpoxy resins that conduct heat well
The epoxy resins that bond substrates to semiconductors have a low thermal conductivity of 0.1 to 0.2 W/m·K, which hinders heat dissipation inside devices. The lab develops epoxy resins with high thermal conductivity by introducing a mesogenic skeleton into the resin precursor to give it liquid crystallinity.
*Illustrative imagePorous materials made by microphase separation
This research creates porous materials by using the periodic nanostructures formed through the microphase separation of block copolymers.
*Illustrative imageDeveloping low dielectric loss materials
The lab also works on developing low dielectric loss materials for use in electronic applications.
MembersFaculty
The Hayakawa Lab's members consist of faculty, doctoral, master's, and bachelor's students, and administrative support staff.As of 2026
- ProfessorTeruaki HayakawaPublications ↗
- Assistant ProfessorRiku TakahashiPublications ↗
- Associate ProfessorYuta NabaePublications ↗
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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: “The Bird of Happiness” Strugalina / CC BY 4.0 (cropped)
- Microfabrication with block copolymers: “Block Copolymer ( )” National Institute of Standards and Technology / Public domain (cropped)
- Epoxy resins that conduct heat well: “Mix of Epoxy Resin and Hardener” Dzhang2680 / CC BY-SA 3.0 (cropped)
- Porous materials made by microphase separation: “Sbs block copolymer” Peter R Lewis / Public domain (cropped)
- Developing low dielectric loss materials: “High frequency PCB Rogers” wd / CC BY-SA 4.0 (cropped)
- Related lab (難波江研究室): “Activated Carbon” Ravedave / CC BY 2.5 (cropped)
- Related lab
(早水研究室): “Graphen” AlexanderAlUS / CC BY-SA 3.0 (cropped) - Related lab (平松研究室): “InGaN crystal SEM+CL” FDominec / CC BY 4.0 (cropped)
- Related lab (道信研究室): “1inchpolymersolarcell” Aromaticmoleculessmell / CC BY 3.0 (cropped)
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