Presentation Information

1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[11p-E215-2]Magnetic Alignment of PLA Hybrid Films Using CaCO3@Fe2O3 Composite Particles

〇(M2)Ritsuki Wada¹, Shuta Hara², Kohki Takahashi³, Akihiro Fukawa¹, Koichi Takase⁴, Mitsuaki Kogo⁴, Yoshiyuki Kojima⁴, Shigeru Smizu⁴, Hiroki Ikake⁴ (1.Grad. Nihon Univ., 2.Kanagawa Univ., 3.IMR, Tohoku Univ., 4.Nihon Univ.)

Keywords:

Magnetic Alignment,Composite Particles,Composite Materials

Structural control of polymer hybrid films using magnetic fields was investigated by incorporating CaCO3@Fe2O3 composite particles, consisting of Fe2O3 nanoparticles coated on CaCO3 particles, into poly(lactic acid) (PLA). To clarify the origin of the observed anisotropy, amorphous poly(DL-lactic acid) (PDLLA) was employed as a reference matrix. Similar optical anisotropy was observed in both PLA and PDLLA hybrid films, suggesting that the anisotropy originates predominantly from the magnetic alignment of CaCO3@Fe2O3 composite particles rather than from the c-axis orientation of PLA crystals. These findings provide insights into magnetic-field-assisted structural control of polymer hybrid materials.

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