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Terahertz Spectral Properties of PEO-Based Anti-Adhesion Films Cross-Linked by Electron Beam Irradiation

Authors
 Hyeon Sang Bark  ;  Inhee Maeng  ;  Jin Un Kim  ;  Kyoung Dong Kim  ;  Jae Hun Na  ;  Junki Min  ;  Jungsup Byun  ;  Yongkeun Song  ;  Byung-Youl Cha  ;  Seung Jae Oh  ;  Young Bin Ji 
Citation
 POLYMERS, Vol.14(10) : 2008, 2022-05 
Journal Title
POLYMERS
Issue Date
2022-05
Keywords
anti-adhesion film ; cross-linked ; electron beam irradiation ; spectroscopy ; terahertz
Abstract
We investigated the spectral property changes in anti-adhesion films, which were cross-linked and surface-modified through electron beam irradiation, using terahertz time-domain spectroscopy (THz-TDS). Polyethylene oxide (PEO), which is a biocompatible and biodegradable polymer, was the main component of these anti-adhesion films being manufactured for testing. The terahertz characteristics of the films were affected by the porosity generated during the freeze-drying and compression processes of sample preparation, and this was confirmed using optical coherence tomography (OCT) imaging. An anti-adhesion polymer film made without porosity was measured by using the THz-TDS method, and it was confirmed that the refractive index and absorption coefficient were dependent on the crosslinking state. To our knowledge, this is the first experiment on the feasibility of monitoring cross-linking states using terahertz waves. The THz-TDS method has potential as a useful nondestructive technique for polymer inspection and analysis.
Files in This Item:
T202205638.pdf Download
DOI
10.3390/polym14102008
Appears in Collections:
1. College of Medicine (의과대학) > Research Institute (부설연구소) > 1. Journal Papers
Yonsei Authors
Maeng, In hee(맹인희)
Oh, Seung Jae(오승재)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/192742
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