[18a-M_123-1~13] 12.2 Characterization and Materials Physics

10:15 AM - 10:30 AM JST(1:15 AM - 1:30 AM UTC)

[18a-M_123-6] Time-resolved CARS spectroscopy for component separation of congested Raman bands and molecular state analysis in epoxy resins

〇Keisuke Seto¹, Yuta Takahara^1,2, Ryu Yoshizawa^1,2, Tsuneto Kanai¹, Toshiki Sugimoto^1,2 (1.IMS, 2.SOKENDAI)

Keywords:

nonlinear spectroscopy,polymer,Adhessive

Epoxy resins are inherently heterogeneous, exhibiting various reaction states and aggregation states. To develop a molecular theory of adhesion, it is crucial to identify the polymer components in epoxy resins that exist in different states. In this study, time-resolved CARS spectroscopy was employed to extract components that form overlapping broad bands in conventional Raman spectra based on differences in their vibrational lifetimes. This research provides a foundation for identifying the polymer components within the resin that govern bonding strength and durability.