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Associate Professor, Graduate School of Engineering, Osaka Metropolitan University *Profile is at the time of the award.
2024Inamori Research GrantsScience & Engineering
I will challenge a long-standing unsolved problem in polymer science from a novel aspect.
We investigated reaction acceleration in bulk radical polymerization by analyzing structural evolution using small-angle neutron scattering and X-ray scattering. In methyl methacrylate, concentration fluctuations at the nanometer scale were found to increase sharply near polymerization-induced vitrification, leading to the formation of heterogeneous structures. Such heterogenization affects the encounter probability of reactive species and is suggested to be associated with the abrupt increase in reaction rate. In contrast, styrene exhibits more gradual structural changes, consistent with its weaker reaction acceleration.
Mori, N., et al. (2025) Ultrasonic Detection of the Interface Formation between the Polymer-Rich and Monomer-Rich Phases during Bulk Polymerization of Methyl Methacrylate Macromolecules 58 (9), 4699–4707 DOI: 10.1021/acs.macromol.5c00268
Usukawa, S., et al. (2025) Exceptionally High Melting Temperature of Polymer Crystal with Fully Extended Chains Prepared via Topochemical Polymerization and Its Analysis Based on Nonlinear Modified Hoffman–Weeks Approach Macromolecules 58 (11), 5738–5746 DOI: 10.1021/acs.macromol.5c00937
Sasaki, E., et al. (2025) Why Is the Trommsdorff Effect Weak for Styrene? An Investigation Using Small-Angle Neutron and Wide-Angle X-ray Scattering Macromolecules 58 (13), 6624–6633 DOI: 10.1021/acs.macromol.5c01338
Science & Engineering
